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eta/Post 1.8.1 User's Manual

1. 185 OP RN oun 193 INDEX FILE FORMAT cecccscccccccsssccccccscccccccscsccccsssssccssssssccssssssccssssssessens 195 INTRODUCTION 195 HEADER 195 irran r 195 DATABASE STATISTICS oen A 196 DATABASP UNIT els 196 pany Sn R TE A EEA NE EEn a EE 196 DEFINE ee ere ee ee AEA A 197 RAW BEAD 198 DRAWBEAD VARIABLE d i V aa 198 tDEBINE POPLINE Calc ie betta Pai 199 TOBIN LINE D tied puta daturi ise 199 CASE MULTIPLE r r ri hE Er ERE PUn rug TE EPA EEE E EA 200 DEFINE TR IM cm sae tne tears thats a betta E Past 200 DEFNE Ron 201 SDSPEOT 201 rene PATH 202 PRB DOU PATH datu E 202 BOUNDARY SPC NODE 203 203 HARDWARE AND SOFTWARE REQUIREMENTS 205 eta Post SHORTCUT K
2. 139 MN NE S ar 140 140 144 REVERSED MAPPING 144 EpXDOPTVBRMI TILE 144 PATE 144 NA PROS ele e 145 INI GG 145 MAIOR AND MINOR STRAIN 147 S OINPLANE STRAIN pesscastnmesecorecacaesnneseiessontecdeseniesebaeeunasenees sae 148 8 10 BLANK TOOL DISTANCE 149 A E 152 CMM ME Imm 153 QUITO PLANK OUTLINE seini 155 AA PIC 157 SIS DERECIT DETECTION 160 8 16 BLANK DISPLACEMENT III III I III RI rh hint rna h hl sRr rra rh erasa 162 SW ace QU dT 164 Chapter 9 GRAPH 167 TARTOD Cr 167 OOTOANDICOBPAPIDDETPA 168 02 1 AIRBAG STATISTICS ABS EAT 169 9 22 BOUNDARY NODAL FORCES BNDOUT RH 170 9 2 3 DEFORMED GEOMETRY DEFGEO Re 170 024 DISCRETE ELEMENTS DEFORC Stab Ho rabat en Pb e enis 170 02 5 ELEMENT DATA BEOUT tee Rue 170 9 2 6 GEOMETRIES CONTACT ENTITIES GCEOUT HH 170
3. Figure 8 3 18 Display marker and table When the user selects List Table option Control Option Window is shown in Figure 8 3 19 This function is used to control the arrangement and the number of contour values listed The user moves eta Post 1 8 1 129 Chapter 8 POSTPROCESS the mouse to the wanted location and clicks the left mouse button to display table location List Table First Page Page Down Last Page Arrange List By value List per Page 1 Figure 8 3 19 Table list control window 1 FIRST PAGE First several selected node or element values are listed 2 PAGE DOWN The selected node or element values with the next page are listed 3 PAGE UP The selected node or element values with the previous page are listed 4 LAST PAGE Last several selected node or element values are listed 5 ARRANGE LIST BY VALUE Toggle on this option the selected node or element values will be arranged 6 LIST PER PAGE The function displays a data control window that allows the user to enter the number of the listed nodes Other functions are common to those in the DEFORM animation The user can select Export List button to export the selected node or element values by Ist format 8 4 VECTOR This function displays the analysis results with vectors as shown in Figure 8 4 1 130 eta Post 1 8 1 POSTPROCESS Chapter 8 Vector Operation Displacement T lt A Current Component wi X
4. 13 ee eee mem 13 CCONEIGEB STICNUBI E 14 Chapter 2 GETTING STARTED 21 o IOCETTING STARTED WITH DOPLOT FILE besequat d uazeatontasaut ceecwsucomeaseneceuencateauauaas 21 22 SELECT NODE ELEMENT AND PART Ree 22 DO T eds 23 OSEE TSECOTUETIDENIENDISdescddersesius mente omues Mo uui ONT senses eas EM 24 vsu Vua 24 25 DU RBODIEMEBNTS eU Earn ene etn ues tutti eon adivit une input 25 Chapter 3 FILE MANAGER 6 6666 57 ER mn 2 CROIRE T Em 28 eos M SIM 29 RR LORI S YN BETTE 30 Do DIR TIN Tr oes E pons de ME IEEE M M EN REM 30 acus bonne 31 250 DADED 31 25 QIOIBIENTA TION 32 mca 20 3 5 5 NUMBER OF COPIES III EEE ERED EEE EEE EERE eta Post 1 8 1 I TABLE OF CONTENTS De POSTING RETE TOT 33 cR Wwe WinNT TIT 25 eX 33 IBS 25 ET TIN Gait aes asin cus anes tee EINE 34 oed 34 Chapter 4 EDIT MENU ehh 35 Jd CDBEATET INE 35
5. 64 Example for analysis result of a quarter of the model 65 Mirror result alone XA PIA oninia 65 Face Reflection Control ot E Cotta artes m E 66 Face Rerlection iuc a dace pute mU dup uu dau ndi EUM dua 67 putface detlect detected from He E Strip e sioe ache Settee Ee Eam E 68 Define Active Window Control Window cccccccccccccecccecceeceeeceeeeeceeeeeeeeeeeeeees 69 Select Node Control 70 Node ise 70 Save Macro RT 71 select Part Control a EE 72 Typic l Thickness Taine History T2 Select Node Control WINdOW sessa nn N 73 Node Contour Result History nnne eene eene nnns 73 An Example of ELEMENT VALUE CURVE rennen eene nnn aaas 74 User Select Control 75 An Example of Node Displacement 76 eta Post 1 8 1 TABLE OF FIGURE Figure 5 L2 Distance Curve Control WIDOOW oiii deoa ea ette eee eee eee ee nego oe eoe 76 5 12 2 JNODE PART Distance CUI Vu deo URDU T4 Figure 5 13 1 Curve Operation Control eene 78 User Control W
6. WINDOW ZOOM The user defines the corners of the zoom window by positioning the cursor on the display screen The user presses and holds the left mouse button and drags the cursor diagonally until the desired window size is reached Release the left button the area included in the window will be displayed in full screen FREE HAND ZOOM The user defines a free region by pressing the left mouse button and dragging the cursor on the display screen to define the region Release the left button the area included in the region will be displayed in full screen Ir 1 FILL SCREEN Automatically zoom in or out until the model fits the viewing area of the screen TOP VIEW Display the model from the TOP or in the XY plane T xz VIEW Automatically display the model from the LEFT or in the XZ plane A Y Z VIEW Automatically display the model from the RIGHT or in the YZ plane ISOMETRIC VIEW Display the model from the isometric plane 120 degree isometric ERASE HIGHLIGHT Remove the highlighted entities from the screen such as the entities generated from the commands SHOW LINE BOUNDARY CHECK ID ELEMENTS DEFINE TITLE etc POSTPROCESS ICON The functions in the POSTPROCESS icon bar allow the user to access the functions to process the result files There are two kinds of icons on the eta Post one is general icons including original status deformed shape stress strain vector plots and graphs etc as
7. Figure 8 7 3 Thinning Contour 8 8 MAJOR AND MINOR STRAIN li I2 This function allows the user to display the major minor principal strains during deformation Figure 8 8 1 shows the control window for Major Minor Strain Refer to Section 8 1 and 8 2 for a description of other buttons eta Post 1 8 1 147 Chapter 8 POSTPROCESS MIDDLE T MIDDLE m 0 000000 n nnnonon 0 002400 7 0 002400 0 004800 0 004800 0 007199 0 007199 0 009599 0 009599 Figure 8 8 1 Strain and Minor Strain m 8 9 IN PLANE STRAIN The functions in this window allow the user to single plot or animate the principal in plane strain s The program displays a control window as shown in Figure 8 9 1 Refer to Section 8 1 and 8 2 for a description of other buttons 148 eta Post 1 8 1 POSTPROCESS Figure 8 9 1 Strain In Plane Operation Layer MIDDLE M Undeform Bv Elem Size Scale Factor 0 Contour Setting List Value Frames Single Frame T Reset ail 0 000000 0 003416 0 006031 0 010248 EN 0 013663 x From 1 12 Inr 1 Frame Number 1 Framesisecand 10 r Strain In Plane Control Window Chapter 8 This function displays the in plane principal strains in the model with vectors The range of the value is displayed in the CONTOUR BAR Other functions are the same as the VECTOR function described in the previous section 8 10 BLANK TOOL DISTANCE T
8. Iw 7 undefarrm By Elem Size Scale Factor Contour Setting List Value Frames All Frames 0 003415 Gp 0 010249 013553 From 1 m 1 Inr 1 1 mz Frame Number 1 FramesiSecond 10 Figure 8 4 1 Vector Operation control window 8 4 1 SELECT COMPONENT There are four types of components DISPLACEMENT VELOCITY ACCELERATION STRESS and STRAIN If DISPLACEMENT VELOCITY or ACCELERATION is selected the CURRENT LAYER is disabled and the CURRENT COMPONENT is enabled The user can select any component or any combination of them If STRESS or STRAIN 15 selected the CURRENT LAYER 15 enabled and the CURRENT COMPONENT is disabled There are three available options MIDDLE TOP and BOTTOM in the CURRENT LAYER eta Post 1 8 1 131 Chapter 8 POSTPROCESS 8 4 2 BY ELEMENT SIZE This function is used to control the size of the vector BY ELEMENT SIZE 15 used to scale the vector size to fit the element This option is only available for STRESS or STRAIN If STRESS or STRAIN 15 selected BY ELEM SIZE will be activated If DISPLACEMENT VELOCITY or ACCELERATION is selected BY ELEM SIZE will be closed 8 4 3 SCALE FACTOR This function is used to scale the vector length according to the scale factor NOTE The SCALE FACTOR is disabled when BY ELEMENT SIZE is selected 8 5 TOOL WEAR zd This function is used to check the wear condition of tools during stamping This icon only appears
9. 10 5 E d d Time E 2 Figure 8 17 2 FI History Curve eta Post 1 8 1 165 GRAPH Chapter 9 Chapter 9 GRAPH The GRAPH function is a relatively independent module compared with other functions in eta Post This function enables the user to view time history curve from LS DYNA analysis result in graph and provides a wide range of tools for the user to transform and learn the results of simulation analysis The features of this function include the ability to manipulate the display settings labels colors etc plenty of advanced curve filtering techniques FIR SAE Butterworth Averaging etc and calculation of different results The detailed description of each function in GRAPH is given in the following sections 9 1 START UP E The user can activate the GRAPH function by clicking the GRAPH icon on the tool bar The program will display the graph dialog box for the user to load the time history result file as shown in Figure 9 1 Graph Result File Load Unload Flat New Graph Exit Figure 9 1 1 Graph start up window eta Post 1 8 1 167 Chapter 9 GRAPH 9 2 LOAD GRAPH DATA FILE The function allows the user to load result files from LS DYNA analysis to the current database The user can input ASCII text file State and Time data files generated from LS DYNA Click the LOAD button to display the Select File dialog box as shown in Figure 9 2 1 OPEN SAVE AS B I spring back
10. LETT TT PT Figure 8 15 3 Show Test Result by Elements HIGH DEFECT 0 1500 to 0 4000 0 0100 to 0 1500 0 0010 to 0 0100 Figure 8 15 4 Show Test Result by Region Boundary 8 16 BLANK DISPLACEMENT This function is used for real time animation of displacement contour of blank compared to its initial shape It is mainly used to check the springback value See Figure 8 16 1 162 eta Post 1 8 1 POSTPROCESS Chapter 8 1 0 020499 4 000 0 061499 Figure 8 16 1 Blank Distance 1 REFERENCE FRAME This function is used to specify the reference frame The program calculates the blank distance between the reference frame and any other specified frame 2 COORDINATION OPTION There are three checkboxes denoting the orientations of X Y and Z For example if X is selected only the displacement along X axis is calculated and displayed The user can toggle on two or three options at one time See Figure 8 16 2 eta Post 1 8 1 163 Chapter 8 POSTPROCESS 9 373280 9 703761 8 034240 7 364720 6 695700 6 025680 5 356160 4 686640 4 017120 3 347600 2 678080 2 008560 1 339040 0 669520 0 000000 Figure 8 16 2 Blank Movement Plot 8 17 FORMABILITY INDEX This function is used to evaluate the formability index of the part As the strain path effect is considered for this index a unified evaluation index 1s used for the material under the nonlinear strain path For the virgin material FI 0
11. 0 005 Stone Length 6 16 eta Post 1 8 1 SIRUCTURAL OVERVIEW Chapter 1 W Depth 1 0 003 W Depth 3 0 01 K Depth 2 0 1 BM ss H Depth 1 10 Depth 3 1 LIST VALUE SETTING List Value Setting Lower Limit Color 14 122 14 Contour Bar Decimal Type AUTO Contour Color Number 20 MIN MAX Major Strain 0 0 Initialize major strain range Auto Load User Defined Contour ON eta Post 1 8 1 17 Chapter 1 18 FLD DEFAULT SETTING Curve Type ENGINEERING OR TRUE ENGINEERING Default Layer As MAX ON OR OFF ON lt Crack gt 25500 lt Crack risk tendency gt 255 255 0 lt Severe thinning 25 6570 Safe gt 100 255 0 lt Wrinkle tendency gt 0 200 255 lt Wrinkle 227991810255 Severe wrinkle gt 2200210 lt Inadquate stretch gt 200 200 200 START UP SETTING State Mode SINGLE or ALL ALL State FIRST or LAST LAST Tool Parts ON or OFF ON PRINTER SETTING File Type 2 JPEG LICENSE SETTING Check Type CHECK ALL LSTC ONLY ETA ONLY STRUCTURAL OVERVIEW FLD default parameter setting Start by single frame or all frames mode valid for d3plot type Start by first frame or last frame valid for d3plot type Start by tool parts display or not valid for d3plot type Printer Setting There are options for print file type setting in the Print Men
12. ETA POST Figure 5 1 5 FIT MAXRADIUS Set the maximum arc radius that can be displayed MIN RADIUS Set the minimum arc radius that can be displayed RADIUS DEV Set the tolerance between two adjacent arcs to merge MIN CHORD Set the minimum chord length that can be displayed 5 1 6 SECTION VALUE CURVE Click SECTION VALUE CURVE to display a graph window containing the section curve Refer to Figure 5 1 7 for a sample graph window The abscissa is the arc length of the section and the ordinate is the corresponding value for instance the ordinate of the curve shows the thickness value on the section as shown in the figure Its zero point 1s correspondingly marked out in the graphic area 56 eta Post 1 8 1 TOOL Chapter 5 Curve Findow 1 Eg Section curve 1 25 5 4 12 Time E1 Print Clipboard Export Attribute Operation Save ah Figure 5 1 6 Section Value Curve 5 1 7 SECTION CURVATURE CURVE This function is used to display section curvature curve Click SECTION CURVATURE CURVE to display a graph window that includes section curvature curve See Figure 5 1 8 The abscissa is the arc length of section line and the ordinate 1s the corresponding curvature Curve Findor 1 Section curve 2 Time E Print Clipboard Export Attribute Operation Save Figure 5 1 7 Section Curvature Curve eta Post 1 8 1 57 Chapter 5 TOOL
13. GLOBAL DATA GUS TAT ecreis 171 928 JOINT FORCE FILE NTTEOB C eccsziozscoesaadazebtonddebhaseteeis 171 9 20 MATERIAI ENERGIES baut 172 9 2 10 NODAL INTERFACE FORCES NCFORC HMM 172 9 2 11 NODAL FORCE GROUPS NODFOR RH 173 02542 NODAL POINT DATA NODOUT pu tid tap 173 0 233 RIGID BODY DATA 173 9 2 14 RESULTANT INTERFACE FORCES RCFORC 174 9 2 15 RIGID WALL FORCES RWFOROQO HH 174 09 16 SEATBELTODIPUTP GSBTOLUD siunpess tee siasebetenhstetadeniest snembxtde rubus dat 175 02 17 CROSS SECTION FORCE SECFORQC e to ro rano eheu 175 9 2 18 SLIDING INTERFACE ENERGY SLEOUT RH 175 9 2 19 SPC REACTION FORCES Hm 175 0220 SUBSYSTEM STATISTICS SSS EAT 3599259599420 5922581 Reha Eos d 176 9 22 SPOTWELD RIVET FORCES SWFORC RH 176 eta Post 1 8 1 V TABLE OF CONTENTS 92 22 TEMPERATURE OUTPUT IPRINT IURE heh bs 177 GRAPH CONTROL WINDOW ders pru tuisse db pb adii RU 177 94 GRAPH OPERATION IIIA Ihm e em hehe e EEE EEE 179 180 AT PPC 180 OASE POT ee 180 S ANN Pia We eter 180 OAS OPE NON oes eset
14. This function enables the user to print or save the content of the current graph window to a picture file Refer to section 3 5 PRINT for more information 9 4 2 CLIPBOARD This function enables the user to copy the content of the current graph window to the clipboard Copy to Clipboard is the standard function of the operating system for transferring data between different software The user can copy the curve directly and provide the bitmap image to other Windows applications which support this format The image in Figure 9 4 2 is directly inserted to the Microsoft Word document using the CLIPBOARD function Contact 2 2 Contact Z Y farce s s 2 2 7 force 62 Contact 2 10 6 d H 10 1 14 Time E 2 Figure 9 4 2 An inserted image form clipboard to MS Word 9 4 3 EXPORT This function enables the user to export the curves in the current graph window to a DYNAFORM curve file with the extension of cur The program displays the Select File dialog window and prompts the user to enter the file name 9 4 4 ATTRIBUTE This function enables the user to change the attribute of the curve Click ATTRIBUTE to display the control window at the bottom of the graph window as shown in Figure 9 4 3 180 eta Post 1 8 1 GRAPH Chapter 9 Curve Window 1 2 Contact 2 x TOrce 2 Contact FAR BIN Time 2 Print Clipboard Attribute Operat
15. two parts The selection of fit points is shown in Figure 5 14 3 a the result of fit calculation is shown in Figure 5 14 3 b MOVE SOURCE PART This option is used to move source part to destination part After the BEST FIT option is toggled on the option is valid In order for the advantageous comparison source part 1s moved to destination part after the calculation of best fit TOLERANCE This function is used to control the calculation accuracy The value should be greater than Zero CRITERIA This function is used to control fit degree 3 RESULT START Calculate the distance between two parts and display the result in contour plot e STOP Stop calculation CLEAR Clear the calculated result 4 Exit Exit this function PART DISTANCE 569 662476 poe 530 789612 491 916779 453 043945 414 171112 375 298248 336 425415 297 552582 258 679749 219 806900 180 934052 142 061218 103 188377 4 315536 T ETA POST a the Element Normal Option toggled off PART DISTANCE 25 442696 64 315552 103 188393 142 061234 180 934067 219 806915 258 679749 297 552582 336 425446 375 298279 414 171112 453 043945 491 916809 30 789612 x ETA POST b the Element Normal Option toggled on Figure 5 14 2 Calculation Result 80 eta Post 1 8 1 TOOL Chapter 5 a the Selection of
16. 16523468 0658348 4 esroee 0529970 5 625096 0 587655 ETA POST Figure 8 3 15 Display node value by table TEST STEP 17 TIME 0 046900 COMPONENT Thickness 0 342 0 408 0 474 0 539 0 605 0 671 0 737 0 803 0 868 0 934 1 000 7 L ETA POST Figure 8 3 16 Display node value by label List Area Marker lists the MIN and MAX of the variable within the selected area The default settings of toggles MIN and MAX are off The slider Indicator Scale handles the length of mark indicator line This feature is only used for contour list value and the controllers will be deactivated when it 1s not used for contour list value After the user toggles on the MIN and MAX options and select an area in the graphical area the program will calculate and show the min max values in each selection area as illustrated in Figure 128 eta Post 1 8 1 POSTPROCESS Chapter 8 8 3 17 Click the Abort Selected option or the Exit button and the markers will be cleaned Figure 8 3 17 Display marker If the List Value is on in the label mode the labels will be removed automatically when the area marker is displayed as illustrated in Figure 8 3 17 If the List Value is on in table mode the table will be showed together with the area marker when the area marker 15 displayed as illustrated in Figure 8 3 18 Index NodeiD siema XX 2 4000 mus 4 o 209 m Hoe
17. ACT e REO 113 8 3 1 CURRENT COMPONENT reris 114 TTE 117 117 SSANIE NC EIAM ee en ee ee EUM Ida ite rac ER ree 117 a3 117 INC WN 117 ATUN D FORN eee ee 117 TG BIN 119 OO ACE 120 ee eG OGL Ole E 120 125 a3 I2 EXPORT CONTOUR LINE 126 8 3 13 EXPORT CONTOUR VALUE 523643 9t Hdabde Esse iet aede oaa tn 126 po TI TT bae fort inis eee 126 CANT IT m Ut 130 Sad SELECT COMPONEN T Des nuda NES NERA 131 SUO BS datae d PELA EDU 132 SCAIP TACTOR dede ieri bei ax 132 Ere el PETS 132 SG 7 OOEIBIANKDEEBINIBIONGimEMeDE HUE ee ee 133 ee ay IVE MTAP PARAN 133 eset tea a eo a om eee 135 IV eta Post 1 8 1 TABLE OF CONTENTS SOLDES 137
18. FLD M Label On Off 0 000000 0 003211 0 006422 0 009633 0 012843 0 016054 0 019265 0 022477 0 025688 0 028899 11 0032109 12 0 035320 Fram 1 20 Frame Number Frames Second 5 MM Figure 8 6 1 FLD control window 8 6 1 LAYER The user can select different layers to show the corresponding results MAX is used to show the maximum strain of the element node The default is the maximum layer for the quick evaluation of the sheet forming 8 6 2 FLD CURVE OPTION This function allows the user to define the FLD curve and other parameters for FLD evaluation The program displays the FLD CURVE AND OPTION window as shown in Figure 8 6 2 140 eta Post 1 8 1 POSTPROCESS Chapter 8 ELD Curve and Option rue decimal pus BLANK T Select r ture Type Engineering percent Define Curve FLC From index file nrt n 0 0 0 5 0 2319 M Show FLO Window rf0 0 5 03 1 6525 Thick mmm 1 0000 I Crack File z Iv Risk of crack Severe thinning Safe 0 34608 Iv Wrinkle tendency Safety Margin 0 07337 Allowable Thinning 0 30000 W Severe wrinkle Essential Thinning 0 02000 Iv Insufficient stretch Allowable Thickening 0 01 OOO Curve Parameter Cancel Apply Figure 8 6 2 FLD Curve and Option 1 DEFINE CURVE BY FLC From index file If the user has defined FLC curve during pre processing the program wil
19. Figure 5 3 3 Figure 5 4 1 Figure 5 4 2 Figure 5 4 3 Figure 5 5 1 Figure 5 6 1 Figure 5 6 2 Figure 5 7 1 Figure 5 8 1 Figure 5 8 2 Figure 5 9 1 Figure 5 9 2 Figure 5 10 1 Figure 5 11 1 Figure 5 11 2 User Define Rotate View dialog aoc eco deve itai 48 Vie O UU TET 49 Mew Name dalos Dor 49 Background Color GUI window and Color Palette 50 System Language Setting Control Window sse 50 St AOI asic E o o S 32 Define Cut Pille ot 53 DeGLOn CUE dU ERI EM 54 DSOEHOD C Ub OP MON 55 ARCE iei soe 56 SE CHON Value C Lots ose od desse od essere Msn 57 esent ilie Pur 37 Measure Are Lenet ood eno pde debat io poaae deba va nsa Cut po aa adde 58 C OI fSOED 59 Deviation Contour Plot between two sections 60 An Example for PARTIAL MODEL display 62 An Example for PARTIAL MODEL WITH WIREFRAME display 62 Constraint Motion Dialog WIndOW iecit etate eode a etel atat o dieat ats 63 Constraint Motion Dialog Window essen eene 64 Mirror Result Control Option Window
20. Indes File ids Cancel Figure 2 3 1 Select idx File Window 2 4 REQUIREMENTS eta Post PC is compatible with LS DYNA PC 940 950 960 970 and 971 It will run in a Windows 98 or NT 4 X 2000 and XP environment It is not recommended for use with earlier versions of Windows The following are minimum requirements for proper operation of eta Post PC in a Windows environment 1 Minimum Graphics Requirement 1024 x 768 require small fonts 2 Graphics Card OpenGL recommended Nvidia chipset or DIRECT 3D with 8 megabytes video RAM 3 Minimum Memory Requirement eta Post 1 8 1 25 Chapter 2 GETTING STARTED Small model 10 000 20 000 elements 256 MB RAM Medium model 20 000 100 000 elements 512 MB RAM Large model 100 000 300 000 elements 768 MB RAM Huge model 300 000 1 000 000 elements 1GB RAM Minimum memory space 256 MB recommended memory space 512M or more 4 Recommended processor 5 Pentium 4 or better 26 eta Post 1 8 1 FILE MANAGER Chapter 3 Chapter 3 FILE MANAGER The options in this pull down menu are used to open save import export and print related files It copies model in graphic area to clipboard and prints related files See Figure 3 1 Open Import Export Copy To Clipboard Print Print To File Reload setting Figure 3 1 File Manager A detailed description of each function is given in the following sections 3 1 OPEN This function displays the Op
21. There are two options ID and NAME so the parts can sort by ID or NAME in the part list ENTER ID The user can enter the part ID in the input box then press ENTER to change the current status If the original status 1s On it will be turned Off after pressing ENTER and vice versa The user can select the part to turn on or off by picking the part name in the part list There are several other methods to turn the part on or off as described below Sort by y Al PICK ELEMENT The part including the selected element is selected The element will be highlighted as the cursor moves over the part i SELECT BY DRAG WINDOW This function allows the user to drag a window around the desired parts All parts including the selected elements are selected el SELECT BY MULTI REGION This function allows the user to define a multi point region by clicking the mouse in the Graphic Display area all parts in this area are selected 8 SELECT BY FREE HAND This function allows the user to select a region by free hand all parts including the selected elements are selected The user depresses the left mouse button and moves the mouse to select the desired region SHOW ELEMENT TYPE This function allows the user to turn the selected element types on off so they are shown or no longer shown in the window list and in the GRAPHIC DISPLAY window e BEAM All parts with the beam element are removed from the part list if the BEAM 1
22. and when it reaches the forming limit FI 1 FORMABILITY INDEX Click the Contour icon and select the Extra History Var option from the dropdown menu of the Contour panel as shown in Figure 8 17 1 Toggle on the Element Result option to select the frame to view from the frame list and the user can view the contour of formability index in the graphic area e HISTORY VARIABLE CURVE The element history variable curve can be used to view the history curve for the relationship 164 eta Post 1 8 1 POSTPROCESS Chapter 8 between FI formability index and the time during the deformation process of the blank In the formability index contour state switch to the single frame and then click Tools Element Value Curve After selecting the element the program will automatically open the element history curve window as shown in Figure 8 17 2 Contour Plot nimation Extra History Var T Component HISTORY VAR 1 m lt m Scale Factor 1 0 Reference Frame 4 Local Element Result C increment Undeform Isosurface Setting Active Part Contour Setting User Defined Contour Export Contour Line Export Contour Value Contour Region List Value Figure 8 17 1 Formability Index e HISTORY PAR 4 15496 a HISTORY 434028 25 HISTORY_PAR 419816 amp PAR 421266 ELEM 462204 20 15 LLI
23. list or select multiple curves by pressing SHIFT or CTRL while clicking the mouse button 1 CURVE OBJECT OPERATION NOTE 186 COPY This function allows the user to copy the selected curve s PASTE This function is used to paste the curve to the current or other graphic window After the copy of curve click the drop down menu for the PASTE button to display the two options in Figure 9 4 7 a Current and From List Select Current option to paste the last copied curve Select From List option to display the dialog box illustrated in Figure 9 4 7 b All the copied curves are recorded in this list and the one in red 1s the last copied curve The user may select one or multiple items from the list and click the OK button to paste these copied curves The user may also click the DELETE CURVE button to delete only the record that can be pasted from the list but not to delete the curve actually Curve Recall List BLANK10_ die Z force Master BLANK 10 die Z force BLANK 10 punchj Z force BLANK ATO hbinder Z farce Current From List a Paste options b Curve recall list Figure 9 4 7 Paste curve of operations The functions of Copy and Paste are different from the other software such as MS Word Use the Clipboard function to paste the curve s to the graph window of other software DELETE This function allows the user to delete the selected curve s from the current graph window EXPORT This function allows the
24. of the blank by cursor select window polygon and free hand region The user can simulate the distance between blank and tool after defining the tool s Figure 8 10 3 shows a typical plot of distance between the blank and tool during the initial forming LS DYHA user input 141249130 STEP2 TIME 0 003416 BLANKTOOL DISTANCE DRAW DIRECTION 133 818039 126 386948 118 955856 111 524 65 104 093674 06 662582 89 231491 81 800407 73 360316 66 038225 59 507 133 52 076042 44 644951 37 213863 20 782772 Y 0 058411 ETA POST 0 22 351681 14 920591 7 489501 Figure 8 10 3 Distance between Blank and Tool eta Post 1 8 1 151 Chapter 8 POSTPROCESS 8 11 CIRCULAR GRID This function allows the user to simulate the circular grid testing in the actual stamping operation The program paves the circular grids specified by the user on the deformed mesh The default size of circular grid is calculated based on the strain of the deformed blank element and is displayed on the deformed blank as shown in Figure 8 11 1 Refer to Section 8 1 and 8 2 for a description of other buttons Circular Grid Operation Radius 2500 Offset oso Color Define L M Direction List value Frames Single Frame T Reset 0 000000 ES 0 002400 0 004800 0 007199 0 009599 From 1 13 Iner 1 H d Frame Number Frames Second 10 m Figure 8 11 1 Circular Grid Control Window 1 RADIUS Th
25. when d3plotint file is opened as shown in Figure 8 5 1 132 eta Post 1 8 1 POSTPROCESS Figure 8 5 1 Tool wear control window 8 5 1 TOOL BLANK DEFINITION Tool Select tool parts to be checked 2 Blank Select blank parts corresponding to the previous tool parts 8 5 2 ABRASIVE WEAR PARAM Pressure Coef pressure coefficient eta Post 1 8 1 Chapter 8 133 Chapter 8 POSTPROCESS Sliding V Coef sliding velocity coefficient Hardness Coef hardness coefficient Wear Coef wear coefficient Hardness hardness p Eb a Dynamic Para dynamic parameter Toggle on DYNAMIC PARA option and click SET button and the user can enter the dynamic parameter setting dialog box as shown in Figure 8 5 2 After quitting eta POST the dynamic parameter will be automatically saved in the configuration file These parameters will be loaded automatically when you open eta POST next time Dynamic Parameter Option WW Depth 1 0 003000 W Depth 2 0 005000 W Depth 3 0 010000 Depth 1 0 050000 K Depth 2 0 100000 Depth 3 0 200000 H Depth 1 10 000000 H Depth 2 5 000000 Depth 3 1 000000 Apply Exit Figure 8 5 2 Dynamic parameter option In the dynamic parameter setting dialog box W depth means wear depth level K depth means wear coefficient level and H depth means hardness level The condition is W1 W2 W3 The purpose of dynamic parameters is to apply the property of real worn
26. 08 9 30 wins C 3l Select Print Area Dialogue M ub ad cbe aub Ida 22 10 File W GOW EE P 33 eid Post setine dialog DOK 34 Create Line Control WindOW cccccceeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 35 Label and Arrow Control Option 36 Light Property Control Option Window esee 38 Material Property Control Window 39 Light Source Property Control 40 Color Map Control Wid 41 Part Color Control 4 Part Attributes control window Part Color eee 43 Part Attributes control window Part Material eee 44 Part Attributes control window 45 Part Attributes control window Wire Frame eee 46 Part Attributes control window No Contour eee 47 VII TABLE OF FIGURE VIII Figure 4 9 1 Figure 4 10 1 Figure 4 10 2 Figure 4 11 1 Figure 4 12 1 Figure 5 1 1 Figure 5 1 2 Figure 5 1 3 Figure 5 1 4 Figure 5 1 5 Figure 5 1 6 Figure 5 1 7 Figure 5 1 8 Figure 5 1 9 Figure 5 1 10 Figure 5 1 11 Figure 5 1 12 Figure 5 2 1 Figure 5 2 2 Figure 5 3 1 Figure 5 3 2
27. 2 for functions of other buttons 8 14 EDGE MOVEMENT This function enables the user to animate movement of the blank s outer edge in real time during forming An arrow is drawn to show the movement including X Y and Z directions of the edge nodes The contour bar located on the upper right corner of the graphic window displays the corresponding contour value The control window is shown in Figure 8 14 1 The highest contour value in the model is labeled with an asterisk and the lowest one is labeled with zero 0 as shown in Figure 8 14 2 The default is the combination of X and Y direction i e the movement condition of material edge on the XY plane eta Post 1 8 1 157 Chapter 8 POSTPROCESS All Frames T 1 S Figure 8 14 1 Edge Movement Control Window 1 DELTA X DELTA Y DELTA Z The default setting is 0 This value means that the specified displacement value will be added to the original movement of material edge 158 eta Post 1 8 1 POSTPROCESS Chapter 8 x 75 708969 70 312416 64 015871 59 519325 54 122780 48 726231 43 320685 37 933140 32 536591 27 140045 21 743498 16 346951 10 950404 5 553857 0 157310 1 Figure 8 14 2 Define Material Movement 2 REFERENCE FRAME This function enables the user to specify the reference frame The edge line of this reference frame is used as the starting to calculate the edge movement The user can click or slide the slider
28. AOE We 36 Aq RPE Ml AR IR WW fines avant E INE CREME MR MI DE PE EE 36 AITOR 37 ZEE PROPET Y EDT 37 6 MATERIAL PROPERTY Ido atii OIN RENE 39 m 40 AOD RST ATTBIBUVEES 42 HO ONT VIE EE ERO 48 49 AD BRC E 50 NG 50 Chapter 5 TOOL nennen enne enne 51 a WG INE GO TE 51 E Sada eS dU UI 52 Ok el Ga 54 A NORMAL STE aorta dead duas 55 ASC PON COLO TO 55 5 1 5 SECTION CUT rh m ras 55 Ae SECTION VALUR CIIR VE 56 sc SECTHONCUBRVATUERECUPBWVELnseZzactanteestudus 57 518 MEASURE ARC LENG hl ss 23279 58 S LOSECTION COMPARISON 5235992998 98999999995 492995 9 09 0 90 4 5 9989989 49 acces eacesooass 58 5 1 10 MOVE SECTION BY dU dat pUpdiebaeuaabedd 60 E DP ANINDLATEBSPEE SECTION teste ses 0 atte duas at uide aus pisei pedi nine poner n Pind EU EP o eines 61 MON DISPLAY OPTION 61 E
29. Chapter 5 animation After selection of the desired nodes the program shows the nodal result history curve as shown in Figure 5 9 2 Control Option Select hy Cursor Reject Last Selected Abort Selected Figure 5 9 1 Select Node Control Window Curve Window 1 amp XX NODE 111909 a SIGMA XX 112531 a 9IGMA XX 301436 30 25 10 15 14 Time 2 Operation Save Figure 5 9 2 Node Contour Result History Curve 5 10 ELEMENT VALUE CURVE This function allows the user to plot the time history curve for the result of the selected elements The curve is plotted in a graph window This function only works during contour animation with the eta Post 1 8 1 73 Chapter 5 TOOL ELEMENT RESULT option selected The procedure of this function is the same as the NODAL VALUE CURVE described in Section 5 6 Figure 5 10 1 shows a typical Element Value Curve lal x XX 121440 a XX ELEM 297616 35 a 9IGMA XX 297022 30 25 20 7 ZS ap ANZ A 1 12 14 Time 2 Operation Save Print Clipboard Figure 5 10 1 An Example of ELEMENT VALUE CURVE 5 11 NODAL DISPLACEMENT CURVE This function helps the user to draw a displacement time history curve for the selected nodes The user may select multiple displacement components at the same time as shown in Figure 5 11 1 After selection of the desire
30. Default Exit Figure 4 11 1 Background Color GUI window and Color Palette The user may select any color in the palette as the top and bottom background color of the graphic display window The program will change the background color immediately to the desired one and exit the Color Palette as the color is selected from the palette Press the ESC key to exit the function without selecting any color The Default button in the Background Color GUI window resets the background color to default Unchecking the Background option in the Display Option menu will turn off the background color option 4 12 LANGUAGE SETTING This function allows the user to change the language for menu prompt message and icon prompt The control window is illustrated in Figure 4 12 1 System Language Select System Language English Y Ok Cancel Figure 4 12 1 System Language Setting Control Window Click on the drop down menu to select a language eta Post currently supports four languages English Chinese Japanese and Korean It is easy to customize more languages through the resource compiler utility software Once a language 15 selected click the Ok button to set the selected language as the system language immediately This selected language will be set as the default language in the subsequent application Click the Cancel button to keep the current language setting 50 eta Post 1 8 1 TOOL Chapter 5 Chapter 5 TOOL The functions i
31. OF CURVE MARKS This function allows the user to change the number of curve marks on the selected curve The user can click button on the right of the text box to select a desired number 2 15 of curve marks 7 WIDTH This function allows the user to change the width of the selected curve The user can press the v button on the right of the text box to select a desired number 1 5 of curve widths 8 LEGEND ON OFF This function allows the user to display or hide the legend in the curve operation control window 9 LEGEND LOCATION This function allows the user to change legend location Click this button and then move the legend to the desired location by the mouse 10 CURVE COLOUR This function allows the user to change the color of the selected curve The user clicks button right to Curve Color to display color panel as shown in Figure 9 4 5 The user may select the desired color for the curve If the user does not want to change the color after the color panel is displayed click anywhere outside the color panel to cancel the operation Click APPLY to update the graph window eta Post 1 8 1 183 Chapter 9 GRAPH 11 12 13 14 15 16 17 18 19 184 BACKGROUND COLOUR This function allows the user to change the background color of the graphic window The default background color is black The procedure of changing the background is the same as the one described in the CU
32. Operation Translate Rotate Move Section By Mouse From 0 000000 0 000000 Frames E m b e H dl H Distance 0 000 1 Frames sSecand 20 Save Recall Apply Exit Figure 5 1 3 Section Cut Operation 5 1 2 CLEAR SECTION CUT This function enables the user to erase the displayed section cut from the screen and return to original state 54 eta Post 1 8 1 TOOL 5 1 3 NORMAL VIEW Chapter 5 This function enables the user to view from the normal direction of the cut plane 5 1 4 SECTION COLOR This function is used to set section color 5 1 5 SECTION CUT OPTIONS This function controls the display of the section cut as illustrated in Figure 5 1 4 for the available options Section Cut Option Radius 15 0000 Radius 0 5000 Radius Dev 0 2000 Min Chord 1 0000 Section Plus Curve Apply Reset Exit Figure 5 1 4 Section Cut Option 5 ARC FIT This function will search and label all the arcs along the section line with the radius between the Max Radius and the Min Radius If DISPLAY is toggled on the arcs labeled with radius will be displayed on the screen The result is shown in Figure 5 1 5 eta Post 1 8 1 55 Chapter 5 TOOL SUN TEST STEP8 TIME 0 002734 COMPONENT Major principal strain middle layer 0 156455 0 145374 0 134293 0 123212 0 112132 0 101051 0 089970 0 078890 0 067809 0 056728 0 045647 0 034567 0 023486 0 012405 0 001325
33. Print Cancel Figure 3 5 1 Print window Print ETA Logo Reverse Video 3 5 1 PRINTER The user can select a printer or select a file format to print to a file Enter the printer name in the field or select a printer from the drop down list and click PRINT to print the image If the PRINT TO FILE option is selected the user can choose a file format by selecting the options in the drop down list in the FORMAT window The file formats supported by DYNAFORM are Postscript PS Encapsulated Postscript EPS GIF JPEG and TIFF etc NOTE When PRINT TO FILE is selected the program will prompt the user to enter a filename to save the current display to a file in the specified format This is similar to File Print to File function 3 5 2 PAPER The user can define the specified paper size and or margin Select the top left button to choose a paper size NOTE The supported sizes are LETTER 8 5x11 inches A4 8 26x11 69 and B5 7 17x10 13 Users can also specify a paper size for a specific paper by entering size in the width and height field eta Post 1 8 1 31 Chapter 3 FILE MANAGER Enter a number in the textbox next to MARGIN to define the margin of the shorter edge of the paper The program automatically determines the margin of the other edge in order to maintain the original aspect ratio of the picture This feature can also be used to scale up the picture Select the button next to UNIT to choose a u
34. SECTION EINE POSITION segue SD 62 AACR TION cts 63 Ae RCA SECTION 63 SICONSTRAINT ener 63 3 MIRROR RESULT XYZ cee 64 uno 66 ESACTPIUESUINIDUOS uad 69 TTE 69 STSTAPT RECORD MACRO FILE 71 71 CRO MNO BY BE TENES NICE 72 eta Post 1 8 1 TABLE OF CONTENTS ON ING Wi cota bed deux 73 5 11 NODAL DISPLACEMENT CURVE n m mnes 74 SADEAN EO N e edes EA 76 BIGUGCBEEN CURVE a7 5 14 DISTANCE 79 PART INTER FERENCE CHECK 91 B IOPXPORTBOUNDABY IINE ep 82 5 17 EXPORT PRESSURE MAGNITUDE 82 SIE MAX PRESSURF OVER TIME REDI EORR 93 SO TINPPCONVEBSIONR 93 S OQ MODEL SOMMAR Y 93 Chapter 6 APPLICATION enne 85 61 SHOW BLANKE water 85 6 2 SHOW TOOLS W
35. Single val 0 0000 Find Overall Max value Mixed Component PRESSURE E z sasurface Ranges Max Val 0 00854 Min Val 3 6315E 05 Reset Range Apply Exit Figure 8 3 4 ISO Surface Control Window 1 Single Isosurface On Once this option is selected the display mode of the isosurface will be Single Isosurface Display otherwise it will be Multiple Isosurfaces Display 2 Single Color Click this button to select the color of the Single Isosurface display 3 Single Val Set the numerical value of the Single Isosurface Display 4 Find Overall Max Value This function is used to find overall max value and display it in the input box for Single Val 5 Mixed Component This function is only available when Single Isosurface On is selected It allows the user to obtain the corresponding relation between the pressure of one surface in solid element and the stress strain in shell element as shown in Figure 8 3 5 eta Post 1 8 1 119 Chapter 8 POSTPROCESS Figure 8 3 5 example for Mixed Component 6 Isosurface Range This function is used to define the display range when Multiple Isosurfaces Display mode 15 adopted The user can define the Isosurface range by entering the maximum and minimum values NOTE This function is only available for SOLID element If there is no SOLID element in the model this function is disabled 8 3 9 ACTIVE PART This option allows the us
36. Step Define Drive Line Export Skid Line hdeasure Skid Line Define Project Direction Frames Single Frame B 0 011999 7 0 017099 a g 0 022198 0 027298 From 1 13 Inger 1 4 Frame Humber pup Framez Second 10 Figure 8 12 1 Skid Mark Operation TRACE BETWEEN STEP If the function is selected one skid mark line per frame is displayed on the blank Otherwise only two skid mark lines original and final lines are plotted and displayed DEFINE DRIVE LINE This function allows the user to select the drive line s by cursor select window polygon or free hand region The drive line is usually defined on the tool mesh probably on the region where skid happens on the blank EXPORT SKID LINE This function allows the user to export the skid line to a line data file The program displays a save file dialog window for the user to enter the file name and save the skid line in the eta D YNAFORM Line Data format MEASURE SKID LINE This function 1s used to measure the distance between skid mark lines Figure 8 12 2 shows a typical plot result of Skid Mark Line The first position is labeled with red frames and the current position is labeled with yellow frames DEFINE PROJECT DIRECTION This function is used to define local coordinate system and assign the project direction eta Post 1 8 1 POSTPROCESS Chapter 8 LS DYNA user input STEP 20 TIME 0 06490 SKID MARK TRACE CURRENT POSIT
37. The greater the curvature changes and it is more likely for wrinkles to occur eta Post 1 8 1 95 Chapter 6 APPLICATION 96 Step Inc This option is used to switch curvature mode between normal mode and step increment mode Max Value This is used to set contour range For example if max value 0 05 contour range will be 0 05 0 05 Contour Setting The color number of the contour is fixed as 8 The values between 1 level up down value will be set as gray color For example if the contour range is 0 05 0 05 the values in 0 0125 0 0125 will be set as gray color The float number display format is fixed as 5 decimal numbers The min color is set as dark blue and the max color 15 set as dark red Show Wrinkle Only If Show wrinkle only is on the field Dihedral Angle gt 15 activated The curvature values will be filtered by shell element dihedral angle The filter rule is if the element dihedral angle gt the value in Dihedral Angle the angle unit is degree the curvature values of the element s nodes will be kept and else the values will be ignored set as 0 and display as gray color The rule is base on the tiny wrinkle places generally have a relative large dihedral angle than the fillet places The definition of element dihedral angle is illustrated in Figure 6 12 2 Contour Region Select the local element to display the curvature contour Show Curvature Radius This option will be
38. activate this function by pressing the SHIFT CTRL keys and LEFT mouse button simultaneously Release SHIFT CTRL keys and move the mouse to rotate light source Release the mouse button to exit the function 4 5 LIGHT PROPERTY This function allows the user to change the light property for gray shading This function only works when the SHADE option is turned on The program displays the LIGHT PROPERTY control window as shown in Figure 4 5 1 eta Post 1 8 1 37 Chapter 4 EDIT MENU Light Property Ambient E Diffuse i Specular Reset Light Light Setting List Save Light Delete Recall Light Import Light Export Light Figure 4 5 1 Light Property Control Option Window LIGHT PROPERTY This function allows the user to adjust the brightness of the part by adjusting the setting of Ambient Diffuse and Specular light This function only works when the SHADE option is turned on The user may click and drag the slider in each light property to adjust the light property in order to reach the optimum display effect AMBIENT Ambient light is a uniform light source coming from all directions to the part DIFFUSE Diffuse light is a parallel light source coming from the light source direction This light 1s reflected evenly on the part surface e SPECULAR Specular light is similar to the diffuse light except the light is reflected sharply in a particular direction RESET LIGH
39. and the color of the selected parts will be endued with the specified material color Please see Figure eta Post 1 8 1 43 Chapter 4 EDIT MENU 44 4 8 2 Fart attributes Option Material Enter Id All Parts Displayed Reverse Remove Recall Figure 4 8 2 Part Attributes control window Part Material TRANSPARENCY This option allows the user to modify the transparency of the selected parts in order to facilitate postprocess observation It should be noted that this function can only work when the SHADE option is turned on The user can select the TRANSPARENCY option from the Option pull down menu and then click parts in the display window or select a part or multiple parts from the part name list The program will mark the part name with an asterisk and highlight the selected part on the screen Click the APPLY button and the program will display a slider on the top of the control window The user can adjust the transparency of the selected part by moving the slider as shown in Figure 4 8 3 eta Post 1 8 1 EDIT MENU Chapter 4 Fart attributes Optian Transparency v Immediate Display Sort By Enter Id All Parts Displayed Reverse Remove Recall Figure 4 8 3 Part Attributes control window Transparency 4 WIRE FRAME This option allows the user to display the selected parts with wire frame in the SHADE mode without displaying the shade effect The user can
40. button to renew the contour according to the new number of decimal 10 FLOAT VALUE TYPE There are two types of float value E default and F E stands for scientific notation and F stands for decimal notation Click the APPLY button to renew the contour according to the new type of float number 124 eta Post 1 8 1 POSTPROCESS Chapter 8 11 FONT SIZE Add font size selection to set the color bar font size 12 HEIGHT SCALE Add height scale input to set the color height 8 3 11 USER DEFINED CONTOUR This function allows users to customize contour according to their own needs There are two options CONTOUR OPERATION and FILE OPERATION If the keyword Auto Load User Defined Contour in etapost config is ON the program will automatically search and load custom contour file in the order of model dir gt system home dir gt install dir 1 CONTOUR OPERATION customizes the new component by using mathematic calculation from the standard components as shown in Figure 8 3 11 User Defined Contour Setting User Defined Contour List gt l Contour Operation File Operation Element result T STM WAS Description Definition Delete Add OK Figure 8 3 11 CONTOUR OPERATION 2 FILE OPERATION allows the user to import file to generate new component or export the defined component to file as sho
41. control window illustrated in Figure 6 6 1 appears Firstly the user can select the tool by the mouse and click the APPLY button After exiting the function the user can scan real time tool movement and home in the process of animation simulation such as FLD thickness Figure 6 6 2 shows the result of tool travel Tool Travel Tool List Show Tool Travel Apply Exit Figure 6 6 1 Tool Travel 88 eta Post 1 8 1 APPLICATION Chapter 6 UNTITLED STEP 13 TIME 0 009949 0 924 COMPONENT Thickness 0 934 0 945 DIE 39 092823 INIT 3 005725 HOME 0 955 0 965 0 976 Figure 6 6 2 The result of tool travel 6 7 PAINT BLANK This function is used to paint the selected images in jpg or tif format on the selected part Figure 6 7 1 shows the User Control Window eta Post 1 8 1 89 Chapter 6 APPLICATION Default Mapping m Figure 6 7 1 Paint Blank Control Window 6 7 1 TEXTURE MANAGER This function enables the user to select add or delete image texture used to paint on the part They can be image files in jpg or tif format Figure 6 7 2 shows the Texture Manager control window Figure 6 7 2 Texture Manager Window 90 eta Post 1 8 1 APPLICATION Chapter 6 e TEXTURE LIST Show all added texture names PARAMETERS Select image texture through i button and display texture name e DELETE TEXTURE Delete the selected 1mage texture from the Texture List the currently used texture cannot
42. displayed when the curvature type is not the Wrinkle Curvature When it is curvature radius the contour color bar will be changed as hyperbola type Turn off this option to display the curvature value eta Post 1 8 1 APPLICATION Dihedral Angle 170 00 Max Value 0 05000 Contour Region List Value Frames All Frames 0 000000 0000687 0001375 0 002053 0 002 750 0 003438 0 005561 0 007561 g 0 009561 10 0 010562 11 0 011562 aca 1 1 P J b 3 From 1 15 Figure 6 12 1 Curvature dialog box P ud E ET T d E i dihedral an gle 7 E d E A Figure 6 12 2 Element dihedral angle definition Chapter 6 When the user selects the step increment mode for the curvature the control window is illustrated in Figure 6 12 3 This function is mainly used to check the surface defect of the model during springback Select Reference Frame The default reference frame is the first frame Click this button and select a frame to define the reference frame Select Current Frame The default current frame is the last frame Click this button and select a frame to define the current frame eta Post 1 8 1 97 Chapter 6 APPLICATION Calculate Curvature Calculate and show the curvature increment of the two frames The rule is the current frame value the reference frame value the result is plot on the current frame Curvature I
43. fit points b the Result of fit Figure 5 14 3 Fit calculation 5 15 PART INTERFERENCE CHECK This function is used to check the interference state between parts The elements with interference will be displayed in grey The control window of this function varies with the different file types If the d3plot file 1s opened the control window illustrated in Figure 5 15 1 a appears If the Nastran file is opened the control window illustrated in Figure 5 15 1 b appears Fart Interference Operation BvPart Groups Part Selection Select Parts Initial Interference keep Remove Cnntral Parameter amp Penetration Contact Contact Gap 0 05 Tolerance 0 05 Pause After Fail Identify Interference a Figure 5 15 1 1 BY PART GROUPS Interference Check Operation By Part Groups Part Selection Select Parts Initial Interference keep Remove lt Coantral Parameters Contact Gap 0 05 0 05 Execute Tolerance Identity Interference b User Control Window If this option 15 toggled on the user needs to set the master part group and slave part group This function is used to check the interference between two part groups There is no checking of interference between parts within the part group If this option is not toggled on the user may select any part This function will only examine the interference between any two parts 2 INITIAL INTERFERENCE eta Po
44. in Figure 7 19 1 FORMING UNTITLED STEP 10 TIME 0 010614 COMPONENT X stress Maximum 16 11mm 10 die 16 131mm 10 165 131mm 10 16 11mm 10 die3 Figure 7 19 1 Frame Description 7 20 APPLY CONTINUOUS COLORBAR If this option is toggled on the colorbar will be displayed continuously as illustrated in Figure 7 20 1 Continuous Colorbar Figure 7 20 2 Default Colorbar The default state is illustrated in Figure 7 20 2 0 710712 0 740742 m 0 733745 0 726835 mm 0 742959 0 756779 0 759083 m 0 779813 0 775206 E 0 791330 0 802847 EXE 0 807454 zm 0 825881 0 823577 pum 0 839701 0 848914 0 855825 0 871948 mu 0 871948 EN 0 891982 0 888072 0 904196 0 918016 0 920319 0 941050 0 936443 E 0 952567 E 0 969690 p 0 987117 0 984814 1 000938 1 010151 EN 1 017061 m 1 033185 1 033185 Figure 7 20 1 Continuous Colorbar Figure 7 20 2 Default Colorbar 7 21 APPLY BLANK MATERIAL COLOR Chapter 7 If this option is toggled on blank color changes to material color but the tools color is still kept in the original color illustrated in Figure 7 21 1 eta Post 1 8 1 107 Chapter 7 OPTION Figure 7 21 1 Blank Material Color 7 22 DISPLAY NODAL CONSTRAINT If the user has defined nodal constraint during pre processing the program will automatically read in the nodal constraint information from the index file The nodal constraint is defined with keyword BOUNDARY SPC N
45. in the information window 1 9 RADIUS BETWEEN THREE NODES This function enables the user to measure the radius of an arc that is passing through three selected nodes by cursor selection default or key in node number Once three nodes are selected the program will display the radius on the screen and output the coordinates and center of the arc in the message window 1 10 DISPLAY OPTIONS The DISPLAY OPTIONS window displays the current part and contains the following commonly used functions shown in Figure 1 10 1 eta Post 1 8 1 11 Chapter 1 STRUCTURAL OVERVIEW M Shade Smooth Shade Material Color Fill Color Element Edge Shrink Hidden Surface Plate Normal Background Figure 1 10 1 Display Options SHADE toggle This command displays the elements as if they were illuminated by a light source Elements that are not directly exposed to the light source are appropriately shaded to simulate the actual shading effect Eta Post uses two methods for object shading flat and smooth Flat shading shades each polygon upon the intensity of the light over a series of polygons making the elements appear flat and angled SMOOTH SHADE toggle This function uses the Gourmand shading method to make the model appear more smoothly It interpolates shade across edges and reduces effect of the intensity change The feature angles between adjacent elements are smoothed by this shading method NOTE The SMOOT
46. is shown in Figure 3 3 1 eta Post 1 8 1 29 Chapter 3 FILE MANAGER Save In IIl E III iN Untitled mstep Blank nas Documents Desktop Documents Computer Places Save as type Nastran Data nas Cancel Figure 3 3 1 Export file dialog box Users can export the model turned on in the current database as the NASTRAN FILE Enter a file name and then click the SAVE button to export the model in the selected file format NOTE EXPORT function is disabled until a d3plot file or NASTRAN punch output2 file is read 3 4 COPY TO CLIPBOARD This function allows the user to copy the model displayed in the GRAPHICS DISPLAY window to the clipboard in the Windows platform environment The image in the clipboard can be directly pasted to the document files 3 5 PRINT The PRINT function prints the content in the display area to a printer or saves it as graphics file This function allows the user to define the default settings for printing or saving as files The options on the control interface are shown in Figure 3 5 1 30 eta Post 1 8 1 FILE MANAGER Chapter 3 Printer M Paper 200 1 Laserlet 102 Letter Width Height IP A Orientation 1 Margin amp Landscape Unit INCH Portrait Number of Copies 1 ptian 4 Print Background Binding Box 4 Print Time Stamp V Print File Name Print Graphic Description Print Area Define Area
47. is based on the previously defined cutting section Enter the offset value and click the GO button the section will translate along or rotate about the defined local W axis FROM TO This function is used to define starting point and ending point of defining section animation by defined section location FRAMES Set the whole frame number of the section cut Click the subsequent button to open the frame list Click the list item to view the section lines of the current position 5 1 11 ANIMATE THE SECTION After the user has defined the section line and set the Translate or Rotate option click the Play button to view the section changes dynamically Export section feature is linked to section animation record nas and lin format are added to record dialog Under static mode the exported is the current section Under animation mode the exported 1s the sections in animation frames 5 1 12 DISPLAY OPTIONS This function is used to control the model display and contains three options in the pull down menu WHOLE MODEL Select this option and click APPLY The whole model will be displayed after exiting from the section cut menu SECTION ONLY Select this option and click APPLY Only the section line will be displayed after exiting from the section cut menu This option is the default option when the user uses Section Cut function PARTIAL MODEL Select this option and then the user can select the wanted partial model which
48. location of the FLD window Once the function 1s selected the user 15 prompted to draw a window in the GRAPHICS DISPLAY WINDOW by the mouse to define FLD The user can also set the coordinate space of the window via parameterization as shown in Figure 8 6 5 The user may try the setting repeatedly until they are satisfied and click the EXIT button to exit 15 0 user input STEP 10 TIME 0 021176 Control Option Ch FLO Wind Choose Hat FLD middle layer PART pooooo2 1 50 1 10 OX 0 8000 EX 0 5000 Reset zoom Reset Position and Size Figure 8 6 5 FLD Window Parameter Edit 8 6 4 FLD REVERSED MAPPING This function allows the user to trace the elements nodes in the model from the FLD window The user moves the cursor to a point in the FLD window to highlight the corresponding elements in the model Click the left mouse button to stop the tracing and the program will label the corresponding element and node numbers in the lower right corner of the screen state bar At the same time the first and second principal strain values display on the screen state bar 8 6 5 EXPORT VRML FILE This function can be used to export FLD result of the current frame as VRML file The program only export the element information without node information The user is allowed to view the VRML model of FLD in other software 8 6 6 FLD PATH This function is used to track strain path of the selected element in FLD
49. major strains are defined as ordinate values In Define curve the data in the left most column are Minor strain values and data in the right most column are major strain values Please refer to DEFINE CURVE FLDO E S The lowest point of Minor engineering strain on FLC curve FLDO T S The lowest point of Minor true strain on FLC curve eta Post 1 8 1 197 Appendix A INDEX FILE FORMAT N Work hardening exponent T Thickness R Plastic anisotropy ratio DRAWBEAD DF Purpose Supplement some attributes of drawbead Input is terminated when a card is found Card 1 1 2 3 4 5 6 7 8 PID LCIDRF LCIDNF DFSCL CSID NAME mE VARIABLE DESCRIPTION CID Contact ID of drawbead must be identical with that in dyn file PID ID number of the part attached by the drawbead see PART DF LCIDRF Load curve ID defining the restraining force LCIDNF Load curve ID defining the normal force DFSCL Scale factor for the restraining force curve LCIDRF CSID Case ID see CASE_MULTIPLE NAME Name of drawbead like Drawbead1 DRAWBEAD VARIABLE DF Purpose Supplementary property parameter of variable drawbead Input is terminated when a card is found Card 1 1 2 3 4 5 6 7 8 Variable PID LCIDRF LCIDNF LCIDSCL CSID a eee VARIABLE DESCRIPTION CID Contact ID of drawbead must be identical with that in dyn file PID ID number of the part attached by the drawbead see PART DF LCIDRF Load curve ID defining the res
50. neighboring frames as result 8 3 7 UNDEFORM This function allows the user to map the current result on the un deformed or the original model Refer to Figure 8 3 2 and Figure 8 3 3 to compare the results displayed on the un deformed mesh and the deformed mesh eta Post 1 8 1 117 Chapter 8 POSTPROCESS LS DYNA user input STEP 10 TIME 0 021176 119 432083 COMPONENT Mean stress middle layer 87 574745 55 717407 23 860065 7 997275 39 854614 71 711960 103 569298 135 126636 167 283981 199 141312 230 998657 326 570679 ETA POST Figure 8 3 2 Contour mapped on the un deformed mesh LS DYNA user input STEP 10 TIME 0 021176 119 432083 COMPONENT Mean stress ING 1 87 574745 55 717407 23 860065 7 997275 39 854614 71 711960 103 569298 135 126636 167 283981 199 141312 230 998657 294 713348 326 570679 ETA POST Figure 8 3 3 Contour mapped on the deformed mesh 118 eta Post 1 8 1 POSTPROCESS Chapter 8 8 3 8 ISO SURFACE This function is used to display the result in SOLID element with ISO Surfaces to show contour levels in 3 dimensional space There are multiple 1sosurfaces display assign the 1sosurface range to display a group of surfaces and single isosurface display assign one numerical value to display one surface as shown in Figure 8 3 4 Isa Surface Setting Bingle lsosurmface gt Single lsosurface On Single Color
51. or ICON BAR a corresponding dialog window with the appropriate functions is displayed in this area 5 DISPLAY OPTIONS The options in this group are used to control the model displayed in the graphic display window These options are always displayed and can be used at any time during an eta Post session 6 PROMPT AREA eta Post displays comments and messages to the user The Graphic User Interface GUI is designed for easy access to all the functions for post processing DYNA and Nastran results This GUI is unified for both Windows and UNIX Linux platforms The user activates the functions via mouse click 1 2 MENU BAR The menu bar contains the FILE EDIT TOOL APPLICATION and OPTION menus All the menus are designed in a logical and efficient way to minimize the number of mouse clicks and operations The FILE menu contains functions that control the input and output of data files the EDIT menu contains functions that allow the user to alter the model graph and the VIEW menu contains functions that alter the display Each of these menus branches into various submenus and functions File Edit Tool Application Option Help FILE MANAGER Import and export data from eta Post EDIT Organize the functions for model operation TOOLS eta Post s tool kit APPLICATION Provide display control import and export function OPTION Provide options in the graphics display window HELP Display the program information and phone number for t
52. points selected by cursor pick or key in node point number The program displays a CONTROL OPTION window as shown in Figure 1 6 1 The operation on SELECT BY CURSOR and KEY IN ID is the same as in IDENTIFY NODE function REJECT LAST allows the user to reject the last selected node Once two nodes are selected the program labels the distance and X Y Z components between the selected nodes points on the screen and also outputs the information in the message window 10 eta Post 1 8 1 STRUCTURAL OVERVIEW Chapter 1 Control Option Distance Type ModeiPaint Node Pnint gt Made Paint Line zIDs From ID To ID Figure 1 6 1 Measure distance Control Option window 1 7 ANGLE BETWEEN THREE NODES This function measures the angle between two vectors formed by three nodes The first selected node defines the vertex of the angle The program displays a CONTROL OPTION window that is common with the one in DISTANCE BETWEEN TWO NODES function Once three nodes are selected the program labels the angle at the vertex node and outputs the information in the message window 1 8 ANGLE BETWEEN TWO LINES This function is used to measure the angle between two lines that are composed by the selected four nodes Default setting is to select by mouse click or inputting of node numbers Once four nodes are selected the program labels the angle at the two lines composed by the selected four nodes and at the same time outputs information
53. program will automatically read in the following file to display all the data during the forming process if the user opens the first d3plot file If the user opens any other file the program will only read in the relevant data this file recorded 2 2 SELECT NODE ELEMENT AND PART The user often needs to operate nodes elements and parts The descriptions for Select Node Select Element and Select Part functions are given in the sections below 22 eta Post 1 8 1 GETTING STARTED Chapter 2 2 2 1 SELECT NODE The SELECT NODE window is illustrated in Figure 2 2 1 Node ID Select by Cursor Select by Window Select by Polygon select by Freehand Select by Displayed Reject Last Selected Redo Abort Selected List Value Option List Table Export List Figure 2 2 1 Select Node window NODE ID Allows the user to select node by cursor which is the default selection type SELECT BY CURSOR Allows the user to select node by cursor which is the default selection type SELECT BY WINDOW Allows the user to select node by using window SELECT BY POLYGON Allows the user to select node by using polygon SELECT BY FREEHAND Allows the user to select node by freehand SELECT BY DISPLAYED Allows the user to select the displayed node REJECT LAST SELECTED Allows the user to reject the last selected node REDO Allows the user to redo the rejected selection ABORT SELECTED Allows the user to abort the selected node eta Post
54. select the WIREFRAME option from the Option pull down menu and then click parts in the display window or select a part or multiple parts from the part name list The program will automatically mark the selected part name with an asterisk and highlight the selected part on the screen Click the APPLY button and the program will not shade the selected parts The control dialog box under the WIREFRAME mode is shown in Figure 4 8 4 eta Post 1 8 1 45 Chapter 4 EDIT MENU Fart attributes Option wireframe m Selected Sort All Parts Displayed Reverse Remove Att Recall Figure 4 8 4 Part Attributes control window Wire Frame 5 NO CONTOUR Under Display Contour mode this option allows the user to remove the contour from the selected part and display it in gray The user can select the NO CONTOUR option from the Option pull down menu and then click parts in the display window or select a part or multiple parts from the part name list The program will automatically mark the selected part name with an asterisk and highlight the selected part on the screen Click APPLY to suppress the contour of the selected parts The selected parts will be plotted in gray color See Figure 4 8 5 for the NO CONTOUR GUI window 46 eta Post 1 8 1 EDIT MENU Chapter 4 Fart attributes Option Ma Contour m Selected Sort By Enter Id All Parts Displayed Reverse Remove Att
55. sre Negative X Y View SHIFT Negative X Z View SHIFT es Negative Y Z View SHIFT ma Negative ISO View SHIFT Q Rotate Light CTRL SHIFT Left mouse button Free Rotation CTRL Left mouse button Pan CTRL Middle mouse button Cursor Zoom CTRL Right mouse button Exit Full Screen eta Post 1 8 1 207 FINAL NOTES FINAL NOTES We at ETA would like to thank those who helped in creating this manual We have tried to make the information in the manual as accurate as possible In an effort to keep future versions as error free as possible we kindly request that you send us your suggestions and notify us of any errors You can contact the ETA software support group at our Troy headquarters via Voice 1 248 729 3010 Fax 1 248 729 3020 E mail support 2eta com eta POST Team Engineering Technology Associates Inc eta Post 1 8 1 209
56. the cursor is moved up or down Default rotate center is the model center If Define Rotate Center is open the user may define rotate center After clicking the VX icon the user may click the left mouse button to specify a suitable position as the rotate center and move the cursor up and down to rotate the model VIRTUAL Y ROTATION The displayed model will dynamically rotate about the global Y axis when the cursor is moved up or down Default rotate center is the model center If Define Rotate Center is open the user may define rotate center After clicking the VY icon the user may click the left mouse button to specify a suitable position as the rotate center and move the cursor up and down to rotate the model VIRTUAL Z ROTATION The displayed model will dynamically rotate about the global Z axis when the cursor is moved up or down Default rotate center is the model center If Define Rotate Center is open the user may define rotate center After clicking the VZ icon the user may click the left mouse button to specify a suitable position as the rotate center and move the cursor up and down to rotate the model eta Post 1 8 1 7 Chapter 1 STRUCTURAL OVERVIEW SCREEN X ROTATION The displayed model will dynamically rotate about the screen X axis when the cursor is moved up or down Default rotate center is the model center If Define Rotate Center is open the user may define rotate center After clicking the SX icon user
57. the selected parts There are five options in the PART ATTRIBUTES control window The default PART ATTRIBUTES window is shown in Figure 4 8 1 1 COLOR The user may select a color in the color window to modify the selected part color Click on the PART COLOR option in the Option pull down menu and select a part from the part name list or the display window The program will automatically mark the part name with an asterisk and highlight the selected parts on the screen Select a color from the color table and then click the APPLY button below the control window The program will change the color of the selected part and the part name to the desired one 42 eta Post 1 8 1 EDIT MENU Chapter 4 Part attributes Recall Figure 4 8 1 Part Attributes control window Part Color 2 MATERIAL This option allows the user to modify the display color of the part to the color of a material However this color can only be displayed when the GRAY SHADE Material Color SHADE mode is turned on The available materials are aluminum steel brass iron gold silver bronze and rubber Click on the MATERIAL button and select a material type from the pull down menu After selecting the material type the user can click parts in the display window or select a part or multiple parts from the part name list The program will automatically mark the part name with an asterisk and highlight the selected part on the screen Click the APPLY button
58. to select the starting frame 3 COORDINATION OPTION There are three checkboxes to denote the directions of X Y and Z For example if X is toggled on only the displacement along X axis 1s calculated and displayed The user can toggle on all the three options at one time 4 SHOW FLOW This function is used to open or close the initial blank outline and material movement curve between boundaries after deformation Default setting is ON 5 SHOW NEAREST DISTANCE This function is used to toggle ON OFF the base step blank outline and the shortest flowing distance of material between boundaries after deformation Default setting is OFF 6 SHOW BY INC DISTANCE eta Post 1 8 1 159 Chapter 8 POSTPROCESS It displays the material movement curve according to the user defined increment distance This function is used to filter the overcrowded edge movement curves 7 INC DISTANCE It allows the user to enter the increment distance as the reference value for filtering the edge movement curve 8 SET INCREMENT START It allows the user to select as node on edge as the starting to calculate the edge movement curve interval which facilitates the user to view movement curves of boundary nodes 8 15 DEFECT DETECTION This function is used to detect the surface defects of the deformed blank The objective is to simulate the Stone Test in the shop The function can be used to check non continual areas such as hollow or separated a
59. tool specification With the wear depth increasing the wear coefficient and material hardness will no longer be constant number they can be changed For example the wear coefficient can be increased and the hardness value can be decreased During the tool wear calculation for each calculating step the calculated wear depth will be compared to the user defined W depth level and then its corresponding K and H should be reflected as shown in Figure 8 5 3 Suppose the current calculated wear result is W the current wear coefficient 1s K the current hardness is H the user defined wear depth levels are W1 W2 W3 the user defined wear coefficient levels are K1 K2 K3 the user defined hardness levels are H1 H2 H3 If WzWI H Hl If WIc WzW2 K K2 H H2 If W2 lt W lt W3 K K3 H H3 If W W3 K K3 H H3 134 eta Post 1 8 1 POSTPROCESS Chapter 8 Surface of tool Figure 8 5 3 Tool wear schematic illustration 8 5 3 OPTION 1 Contact Tol Element contact calculation tolerance The default is 1 2 No of Strokes This option enables the user to specify number of strokes The default is 1 3 Show Aux This option enables the user to set type for the desired auxiliary data pressure or sliding velocity 4 Show His Display tool wear history curves by the following three types Wear Result Wear Coefficient Hardness 5 View Imported Result Select this option as shown in Figure 8 5 4 a The user should first select
60. user to export the selected curve s in ETA format LS DYNA format NASTRAN format or ETA CSV format or exporting the maximum Y value and minimum Y value of the selected curve by CSV format from the current graph window eta Post 1 8 1 GRAPH Chapter 9 2 CURVE OPTIONS The Curve Options include 9 types of operations for the list selected curve For example if the user selects a curve from the curve name list and clicks 1 X button the program will perform the reciprocal operation to the Y values of the selected curve e NEGATIVE This function allows the user to change the Y axis value of the selected curves by multiplying 1 e SCALE This function allows the user to superimpose the scale curve that scales the Y axis value of the selected curves through multiplying a given Y scale factor e Bf INTEGRAL This function allows the user to calculate the integral of the selected curve The new value of Y coordinate equals to the area under the selected curve from the origin to the current X value DIFFERENTIAL This function allows the user to calculate the differential of the selected curve The new Y axis value equals to the slope of the curve s tangent on the corresponding X point 2 e SQUARE This function allows the user to calculate the square of the selected curve The new Y coordinate value equals to the original Y axis value multiplying by itself FH SQUARE ROOT The function allows the us
61. 0 TIME 0 000873 FLD middle layer CRACK RISK 100 OF CRACK SEVERE 80 THINNING SAFE 60 INSUFFICIENT STRETCH WRINKLE TENDENCY 40 WRINKLE ETA POST Figure 5 3 2 Example for analysis result of a quarter of the model DEEP DRAWPING STEP 20 TIME 0 000873 FLD middle layer CRACK RISK 100 SEVERE 80 THINNING SAFE 60 INSUFFICIENT 40 STRETCH WRINKLE TENDENCY WRINKLE ETA POST Figure 5 33 Mirror result along YZ Plane Press CLEAN MIRROR RESULT in the Control Option Window to remove the mirrored model and eta Post 1 8 1 65 Chapter 5 TOOL result DEFINE LOCAL CS The user defined UV plane of LCS is the symmetry plane The process of Define Local CS is the same with the one of Define Cut Plane Please refer to DEFINE CUT PLANE in Section 5 1 5 4 FACE REFLECTION This function simulates reflection model illuminated by several tubular light sources that are parallel distributed on one plane The formed zebra strips on the model surface are used to visualize the smoothness of the surface Function Control Window is shown in Figure 5 4 1 After entering this function light strips are automatically shown on the model surface The initial light source plane is the global X Y plane The reference point of the plane is located on the positive Z axis direction at the center of the model Light source width and spacing are automatically set according to the model
62. 1 8 1 23 Chapter 2 EXIT Exits the SELECT NODE window 2 2 2 SELECT ELEMENT GETTING STARTED The Select Element window 1s similar to the Select Node window Refer to Section 2 2 2 for a detailed description of its operation The SELECT ELEMENT window is illustrated in Figure 2 2 2 2 2 3 SELECT PART Control Option Element ID select by Cursor Reject Last Selected Abort selected List Value Option Figure 2 2 2 Select Element window The Select Part window 15 similar to the Select Node window Refer to Section 2 2 1 for a detailed description of its operation The SELECT PART window is illustrated in Figure 2 2 3 24 Control Option Select by Cursor Figure 2 2 3 Select Part window eta Post 1 8 1 GETTING STARTED Chapter 2 2 3 INDEX FILE Index file idx is the written by pre processor together with dyn mod file under the same directory It is mainly used to transfer process parameter to post processor If there are more than one idx file under the same directory when post processor opens another result it prompts the user to select a matching idx file with the result Figure 2 3 1 shows the dialog to select idx file Detailed information of index file format refers to APPENDIX A Look in amp t 2 ihe TIT i BA MSTEP blank est mstep Documents te E Documents Computer Network name Places Files of type
63. 1 Create Line Control window 1 SELECT BY CURSOR eta Post 1 8 1 35 Chapter 4 EDIT MENU Select the location of the node a point will be created END PICK Click this button to end node pick and create a line formed by connecting selected nodes in sequence ENCLOSE LINE Click this button to end node pick and create a line formed by connecting selected nodes in sequence A closed line can be created by connecting the last node on the line to the first node on the line REJECT LAST The last selected node is rejected REJECT ALL All selected nodes are rejected EXIT Exit the function 4 2 DELETE LINE This function enables the user to delete the selected line s 4 3 LABEL ARROW LABEL allows the user to insert a title or text label at any location in the graphic display window ARROW allows the user to insert arrows at any location in the graphic display window The program displays a control window as shown in Figure 4 3 1 36 L abel amp rrew Iv Display Label Arrow Click here to enter text Font Size 12 M Arrow Text Delete Oo Deele Exit Figure 4 3 1 Label and Arrow Control Option Window eta Post 1 8 1 EDIT MENU Chapter 4 l DISPLAY LABEL ARROW Control the Label Arrow display in the graphic display window Default is toggled on 2 FONT SIZE This function is used to control the font size of the text Click the pull down menu in the font size window to select differ
64. 10 Figure 9 4 11 Figure 9 4 12 Curve Properties aue fai toda Pose epo sau paa bad du eoa 182 COLOR olov HT 184 Curve Operation Dialog DO X uie Dutton ehe arose ou ene ba 185 P stecurve ol Operation ous avevo dabo Suns oaa a cuo ORE 186 Int Conversion WING OW S 188 DATA CONTROL window of AVERAGE 189 DATA CONTROL ot FIR filter FIR ieee 190 DATA CONTROL window of SAE filter 191 DATA CONTROL window of Butterworth filter Butterworth 191 eta Post 1 8 1 INTRODUCTION INTRODUCTION The POST function in eta DYNAFORM is a general post processor for all ETA software including DYNAFORM VPG and FEMB POST is an independent application module that is started when the user selects POST from the main menu The POST module quickly post processes result data of finite element analyses including the real time animation of stresses strain energy displacements and time history curves Its fully dynamic allocation of memory optimizes system resources allowing for unlimited model sizes eta Post 1 8 1 1 STRUCTURAL OVERVIEW Chapter 1 Chapter 1 STRUCTURAL OVERVIEW 1 1 GENERAL OVERVIEW The POST graphic user interface varies slightly from the preprocessing user interface It allows the user to quickly access most functio
65. 10 contac 4 Slave Component 1 X force 5 1 0 die Z force 6 2 BLANK 10_punch Z force C7 3 0 binder Z force Curve Option x 1 8 x2 4 tees ced un Eedis ned cuy s Filter Average Select Computation Modify Y Axis l yZ Resulting Curve Plot ETA POST Copy Paste x SELECT BY CURSOR Delete Export Apply Undo Clear New Graph Exit SELECT PARTS FOR EXPORT BOUNDARY COMMAND COMPLETED Fill Color ElementEdge Shrink COMMAND COMPLETED ri GRAPH CURVE zi Hidden Surface Plate Normal Background Graph Curve New Graph E Shade Iv Smooth Shade Material Color Exit Figure 9 3 2 Graph 5 NEW GRAPH This function allows the user to create a new graph window to plot the new curve s By default the new curve is plotted in the current graph window when the user clicks APPLY This is the same as the NEW GRAPH function in the CURVE OPERATION window 6 EXIT Click this button to exit the Graph module 9 4 GRAPH OPERATION GRAPH OPERATION TOOLBAR There are five buttons in the toolbar for the operation of graph window as shown in Figure 9 4 1 eta Post 1 8 1 179 Chapter 9 GRAPH Print Clipboard Attribute Operation Save Figure 9 4 1 Curve operation toolbar The detailed description of each function 15 given below 9 4 1 PRINT
66. 4 TS LOGO topple 104 T6 NORMAL COLOR gee le 104 LINE cts carat ut 104 eta Post 1 8 1 III TABLE OF CONTENTS TOE PIO 105 7 9 ELEM ORIENTATION m I I mH I III e e hme sehn 105 TIOACTIVE CONTOUR RANGE eiri iser sso Sen RID End bu mita D qi 105 ERATTCONTOUPRANCGI nw sete E Rar 105 7 12 DEFINE ROTATE CENTER nm IR I mnm rh nehm 106 JA TISPLAY GRAPH ON SCREEN 2 106 Dad UPC TAS COLI ene 106 cus APPIN SECOND RENDER os iret AMEN OS Qd HN POSUI CIN 106 PELA PDI Gre TUTTO 106 DOISOUBBI MOUSE TRACKING ese 106 7 18 APPLY MODEL CONFIGURATION 106 7 19 APPLY FRAME DESCRIPTION 106 APPLY CONTINUOUS COLOBBABR 107 721 APPLY BLANK MATERIAL COLOR 107 732 DISPLAY NODAL CONSTRAINT ers ret tere 108 Chapter 8 POSTPROCESS nennen enne nennen nennen ennt nennen 109 tid ie 110 E TXEECIRSNI E 110 S OPERA LION 110 CANE OPE Re 111 ANIMATION OPERATION 112
67. 5 1 8 MEASURE ARC LENGTH This function allows the user to measure the arc length on the section line by the mouse The user may click the left mouse button to select two nodes on any section line The selected nodes are marked with node number When two nodes are selected the program displays the arc length highlights it on the screen and outputs the relevant information in the message window See Figure 5 1 9 QSS STEP 17 TIME 0 011001 21 443718 COMPONENT Thinning 19 899235 18 354752 16 810270 15 265787 13 721304 12 176821 10 632338 9 087855 7 543372 5 998889 4 154406 2 909924 1 365441 0 179042 ETA POST Figure 5 1 8 Measure Arc Length 5 1 9 SECTION COMPARISON This function enables the user to select two sections during different periods of time and compare the morphing degree of other parts via combining the reference points on the two sections Please refer to Figure 5 1 10 and Figure 5 1 11 58 eta Post 1 8 1 TOOL Chapter 5 Section Comparison Define Sectian 1 Apply Define Section 2 Apply Align amp ectians Define Reference Points Auto Fit owe Sestionz v xine 100 7 Angle Ime hao 8 Define Rotate Center wj C
68. 5 toggled off And all parts with the beam element appear in the part list if the BEAM is toggled on SHELL All parts with the shell element are removed from the part list if the SHELL is toggled off And all parts with the shell element appear in the part list if the SHELL is toggled on e SOLID All parts with the solid element are removed from the part list if the SOLID is toggled off And all parts with the solid element appear in the part list if the SOLID 15 toggled on 6 eta Post 1 8 1 STRUCTURAL OVERVIEW Chapter 1 e OTHER All parts with the line are removed from the part list if the OTHER is toggled off And all parts with the line appear in the part list if the OTHER is toggled on e KEEP If KEEP is selected the selected parts are highlighted and labeled with an asterisk on the Part List When the user exits the function only the selected parts remain displayed ALLON Turn all parts on and display them on the screen ALL OFF Turn all parts off from the GRAPHICS DISPLAY e REVERSE This function reverses the current on and off status of the parts in the model The program updates the model display accordingly UNDO Undo the last operation in the Part ON OFF function REDO Redo the last operation in the part ON OFF function EXIT Closes the PART ON OFF dialog box and exits the function VIRTUAL X ROTATION The displayed model will dynamically rotate about the global X axis when
69. C The user can plot the joint force data with jntforc file The following data are included X FORCE eta Post 1 8 1 171 Chapter 9 GRAPH Y FORCE Z FORCE X MOMENT Y MOMENT Z MOMENT RESULTANT FORCE RESULATANT MOMENT 9 2 9 MATERIAL ENERGIES MATSUM The user can plot the time history data for material energy with the matsum file The following data are included INTERNAL ENERGY KINETIC ENERGY X MOMENT Y MOMENT Z MOMENT X RIGID BODY VELOCITY Y RIGID BODY VELOCITY Z RIGID BODY VELOCITY 9 2 10 NODAL INTERFACE FORCES NCFORC The user can plot the nodal interface force with file The following data are included 172 X FORCE Y FORCE Z FORCE PRESSURE X COORDINATE eta Post 1 8 1 GRAPH Chapter 9 Y COORDINATE Z COORDINATE 9 2 11 NODAL FORCE GROUPS NODFOR The user can plot the nodal group force with nodfor file 9 2 12 NODAL POINT DATA NODOUT The user can plot the nodal data with nodout file The following data are included X DISPLACEMENT Y DISPLACEMENT Z DISPLACEMENT X VELOCITY Y VELOCITY Z VELOCITY X ACCELERATION Y ACCELERATION Z ACCELERATION 9 2 13 RIGID BODY DATA RBDOUT The user can plot the relative data for rigid body with rbdout file The following data are included GLOBAL LOCAL X COORDINATE GLOBAL LOCAL Y COORDINATE GLOBAL LOCAL Z COORDINATE GLOBAL LOCAL X DISPLACEMENT GLOBAL LOCAL Y D
70. EY cccccccccsscccccccssccccccscccccccsssscccsssssccssssssccssssssccsees 207 FINAL NOTES 209 VI eta Post 1 8 1 Figure 1 1 1 Figure 1 3 1 Figure 1 3 2 Figure 1 3 3 Figure 1 4 1 Figure 1 6 1 Figure 1 10 1 Figure 2 1 1 Figure 2 2 1 Figure 2 2 2 Figure 2 2 3 Figure 2 3 1 Figure 3 1 1 Figure 3 2 1 Figure 3 3 1 Figure 3 5 1 Figure 3 5 2 Figure 3 6 1 Figure 3 8 1 Figure 4 1 1 Figure 4 3 1 Figure 4 5 1 Figure 4 6 1 Figure 4 6 2 Figure 4 7 1 Figure 4 7 2 Figure 4 8 1 Figure 4 8 2 Figure 4 8 3 Figure 4 8 4 Figure 4 8 5 eta Post 1 8 1 TABLE OF FIGURE TABLE OF FIGURE ela Fost interlace WING OW Nr 3 PART ON OFF WiNdOW C 5 General POSTPROCESS Icons seisisissssscsessevessesspessadssevnssnsapessadsueenssnsepescadsteenssesenonion 9 Special icons for eta DYNAFORM results eesssesssseeeeeeeeee enn 10 Identify Node Control Option Window 10 Measure distance Control Option 11 Ay OOO UU TP 12 Select Pile W dbi o 22 Select Node Window T ee eee 23 Select Element WINDOW M 24 wie uq iiio 24 Select idx File WIInIOOW 25 Open Pile IDEdIO 28 Iriport Pile Ay 29 Calo DOX 9 9243599385
71. H SEC LB Chi gt Ch S MICROSEC Target UNIT hit TON SEC N MSEC FT SLUG SEC LB IH LB SEC Z IN SEC LB Cho SEC Cho MICROSEC Ok Cancel Figure 5 19 1 Unit Conversion window 5 20 MODEL SUMMARY This function enables the user to obtain the statistical data regarding elements and nodes in the model Figure 5 20 1 shows a sample model summary eta Post 1 8 1 83 Chapter 5 TOOL M Figure 5 20 1 Model Summary 84 eta Post 1 8 1 APPLICATION Chapter 6 Chapter 6 APPLICATION The functions in this menu allow the user to make an application operation such as show blank part only show tools wire frame and multiple stage control as shown in Figure 6 1 Application Show Blank Part Only Show Tools Wire Frame Show Tools Transparency Drawbead Force Factor Multiple Stage Control Tool Travel Paint Blank Ironing Rate Import Colorbar Setting Tonnage Prediction Wrinkling Amplifier Springback Distance 3 Point Gauge Check Figure 6 1 Application Menu 6 1 SHOW BLANK PART ONLY This function is only used to show blank part 6 2 SHOW TOOLS WIRE FRAME This function is used to use the wire frame method to show tool part 6 3 SHOW TOOLS TRANSPARENCY This function is used to use the transparency method to show tool part 6 4 DRAWBEAD FORCE Thi
72. H SHADE option is only available when the SHADE option is on 3 MATERIAL COLOR toggle If this function is toggled on the model will be displayed in material color This function can only be used in SHADE mode FILL COLOR toggle This function toggles on off FILL COLOR mode of the model FILL COLOR fills the displayed elements with their designated part color ELEMENT EDGE toggle This function can only be used in FILL COLOR mode The outline of the elements is plotted in white when the option is toggled on The model can be displayed without the outline by toggling off the option NOTE The ELEMENT EDGE is only available when the FILL COLOR or SHADE option is on 6 12 SHRINK toggle SHRINK creates a plot with elements reduced in size by 20 percent This option allows the user to toggle the function on off HIDDEN SURFACE toggle This function toggles on off the model in HIDDEN SURFACE mode HIDDEN SURFACE hides the elements behind the elements viewed from the user s point of view PLATE NORMAL toggle This function toggles plate normal on and off The plate normal is shown with a vector drawn at the center of the element and along the element s normal direction eta Post 1 8 1 STRUCTURAL OVERVIEW Chapter 1 9 BACKGROUND toggle If this function is toggled on the background color is set to faded color default Otherwise the default background color is black The user may open the Background C
73. ION FIRST POSITION ETA POST Figure 8 12 2 An example of Skid Mark 2 8 13 BLANK OUTLINE This function is used to calculate the outline of the blank on the binder un deformed blank and estimate the size of blank The estimation is based on the trim line on the part after forming or springback simulation The steps are listed below 1 Read in d3plot files from the DYNA analysis Read in a line data file as the trim line by using the IMPORT function in the FILE menu The line data file should only consist of trim line s The trim line can also be created by using the CREATE LINE function in the EDIT menu 2 Select BLANK OUTLINE from the icon bar The Control Option Window is shown in Figure 8 13 1 Click SELECT BY CURSOR to select trim line s eta Post 1 8 1 155 Chapter 8 POSTPROCESS Control Option Select by Cursor Execute Reject Last Figure 8 13 1 Select Line Control Option Window 3 After the desired trim line is selected click EXECUTE to calculate the Blank Outline NOTE If there is no line defined in the database the program will display a warning message NO LINES IN DATABASE Figure 8 13 2 Trim Line at the end of the Forming 156 eta Post 1 8 1 POSTPROCESS Chapter 8 Figure 8 13 3 Outline of the Un deformed blank The selected or created trim line will automatically map on the original un deformed blank for the user to estimate Please refer to Section 8 1 and 8
74. IRE FRAME eH eme emm emen 85 63 SHOW TOOLS TRANSPARENCY see ASE ont bu eda OE EM 85 GAR A WIRE Alo POR aod peau ai pU aud 85 6 5 MULTIPLE STAGE CONTROL m 96 ree e MEN SANCIUS gg TPAINTBI AN ee e pa EE E A EE E ENSA ESEE g9 CUR IN CITED tect went ene in reson bands ese eednanaateo bub ad ous 90 DUO SEIECTWESCOEUUREE Gud ste 91 DISSHUPPCTDAPDAPDINCUSTSCIUE 91 DT DEFINI MAPPING PLANE eee ete secs decd UM P M MEME dM NE 9 DAINI Re IE ee ee 9 WR PEE 91 92 E 92 VA SIF Tm 92 92 6OIMPOPT COLORBAR D ED MM 92 6 10 EXPORT SETTING 03 TONNAGE PREDICTION 2959499 29 55999 QA IS ERE MIN S 03 DX ela AOS SEC m 05 613 WRINKLING AMPLIFIER bague nsa uds pq o uad 08 6 14 SPRINGBACK DISTANCE III III I tritt trans 09 6 TIS GDBONTCOUATUGOPECHECH E Ree Ru er 100 Chapter 7 OPTION 6 66 103 103 72 TITLE Cee ole donn Oa une duNDIP dear cigs seria a 103 TOCOLOB BAR E 104 TAMAS MIN editora 10
75. ISPLACEMENT GLOBAL LOCAL Z DISPLACEMENT GLOBAL LOCAL X ROT DISPLACEMENT eta Post 1 8 1 173 Chapter 9 GRAPH GLOBAL LOCAL Y ROT DISPLACEMENT GLOBAL LOCAL Z ROT DISPLACEMENT GLOBAL LOCAL X VELOCITY GLOBAL LOCAL Y VELOCITY GLOBAL LOCAL Z VELOCITY GLOBAL LOCAL X ROT VELOCITY GLOBAL LOCAL Y ROT VELOCITY GLOBAL LOCAL Z ROT VELOCITY GLOBAL LOCAL X ACCELERATION GLOBAL LOCAL Y ACCELERATION GLOBAL LOCAL Z ACCELERATION GLOBAL LOCAL X ROT ACCELERATION GLOBAL LOCAL Y ROT ACCELERATION GLOBAL LOCAL Z ROT ACCELERATION 9 2 14 RESULTANT INTERFACE FORCES RCFORC The user can plot the time history curve for interface resultant force with rcforc file The following data are included X FORCE Y FORCE Z FORCE MASS 9 2 15 RIGID WALL FORCES RWFORC The user can plot the wall resultant force data with rwforc file The following data are included NORMAL FORCE X FORCE 174 eta Post 1 8 1 GRAPH Chapter 9 Y FORCE Z FORCE 9 2 16 SEATBELT OUTPUT SBTOUT The user can plot the seatbelt output data with sbtout file The following data are included SEATBELT SLIPRING RETRACTOR 9 2 17 CROSS SECTION FORCE SECFORC The user can plot the cross section resultant force curve with secforc file The following data are included X FORCE X MOMENT Y FORCE Y MOMENT Z FORCE Z MOMENT X CENTROID TOTAL FORCE Y CENTROID TOTAL MOMENT Z CENTROID AREA 9 2 18 SLIDING INTERFACE ENERGY SLEOUT The user can plot
76. ISTICS Purpose Statistics of the database Card Format Card1 2 3 4 5 6 7 8 VARIABLE DESCRIPTION NPRT Number of parts NND Number of nodes NEL Number of elements NLN Number of lines NSRF Number of surfaces DATABASE UNIT Purpose Specify the unit system Card Format Card 1 1 2 3 8 VARIABLE DESCRIPTION NUNT Unit system EQ 0 MM TON SEC EQ 1 MSEC EQ2 MM KG MSEC KN EQ3 M KG SEC N DESCRIPTION Description of the unit system PART DF Purpose Supplement some attributes of part i e material information material properties FLC information etc Input is terminated when a card is found Card Format 196 eta Post 1 8 1 INDEX FILE FORMAT Appendix A Card 1 1 4 5 8 PARTNAME TOOLNAME Default Card 2 1 2 3 4 5 6 T 8 gt fs ff VARIABLE DESCRIPTION PARTNAME Name of part TOOLNAME Name of tool of part PID Part identification must be identical with that in dyn file SECID Section identification defined in SECTION MID Material identification defined in MAT FLDID FLD ID defined in DEFINE FLD COLOR RGB color of part r b lt lt 8 b 16 DEFINE FLD Purpose Define FLD forming limit diagram parameters Card Format Card 1 1 2 3 4 5 6 T 8 lO VARIABLE DESCRIPTION FLDID FLD identification must be unique LCID Load curve ID which defines the forming limit curve FLC Minor strains are defined as abscissa values and
77. IX B HARDWARE AND SOFTWARE REQUIREMENTS UNIX PLATFORM OS VERSION GRAPHICS CARD DISK SPACE HP HP UX 11 Minimum CRX 8 Plane 200MB IBM AIX 4 2 Minimum 24 Plane Graphics 200MB SGI IRIX 6 5 All Graphics Boards Supported 200MB DEC OSFI v 3 Minimum PXG 8 Plane 200 MB SUN Solaris 2 6 Minimum Creator 3D 200 MB LINUX The RedHat operating system version 7 3 and above is supported Eta Post must run under KDE environment NVIDIA graphic cards are recommended e PC WINDOWS eta Post Processor is compatible with LS DYNA 960 970 and 971 It will run on Windows 2000 XP Vista and Windows 7 environments It 15 not recommended for use with earlier versions of Windows The following are minimum requirements for proper operation of eta Post Processor in a Windows environment e Minimum Graphics Requirement 1024 x 768 small font required e Graphics Card OpenGL based NVIDIA chip set recommended or DIRECT 3D sufficient with 8 megabytes video RAM Minimum Memory Requirement Small model 10 000 20 000 elements 256 MB RAM Medium model 20 000 100 000 elements 512 MB RAM Large model 100 000 300 000 elements 768 MB RAM Huge model 300 000 1 000 000 elements 1GB RAM eta Post 1 8 1 205 Appendix B e Minimum space 256 MB Recommended processor Pentium 4 or better 206 HARDWARE AND SOFTWARE REQUIREMENTS eta Post 1 8 1 eta Post SHORTCUT KEY Appendix C APPENDIX C eta Post SHORTCUT KEY
78. L Chapter 5 NODE 200 PART OFFSETO 25 20 Distance i 1U 1 21 2 3l Time E 3 Figure 5 12 2 NODE PART Distance Curve 5 13 SCREEN CURVE OPERATION This function allows the user to operate the curves in the display window The Control Window is shown in Figure 5 13 1 eta Post 1 8 1 77 Chapter 5 TOOL Curve Operation Graph Options IV Show Graph V Show Tithe and Data IV Clear Curve Before Inserting IV Show Curve Mark Mode displacement CO Doisplacement_XP 1 Displacement Y 3 Displacement T All On All Off Revere Hide Sham Cunre Window Location Exit Figure 5 13 1 Curve Operation Control Window 1 GRAPH OPTION e SHOW GRAPH If this option is toggled on curves will be shown in the window otherwise they will not be shown SHOW TITLE AND DATA If this option is toggled on title and data will be shown in the window otherwise they will not be shown CLEAR CURVE BEFORE INSERTING CURVE If this option is toggled on the original curves will be deleted when adding other curves otherwise they will not be deleted e SHOW CURVE MARK If this option is toggled on curve mark will be shown in the window otherwise they will not be shown 2 EXPORT This function enables the user to export curves from the window to the curve window 78 eta Post 1 8 1 TOOL Chapter 5 3 CURVE WINDOW LOCATION This function is u
79. LECT to display the DATA CONTROL window The program will prompt the user to enter the corresponding parameters in the control window The user may enter any appropriate parameters in the DATA CONTROL window which displays the default values as shown in Figure 9 4 12 DATA CONTROL Cutot 000000 OK Cancel Figure 9 4 12 DATA CONTROL window of Butterworth filter Butterworth 4 COMPUTATION This function allows the user to create a new curve through the algebraic operation of several selected curves including Add Subtract Multiply Divide etc This operation usually requires to selecting the order of the curve This function adds the Y values from two or more curves e SUBTRACT This function subtracts the Y values of the second curve from the first one x MULTIPLY This function multiplies the Y values of the selected curves eta Post 1 8 1 191 Chapter 9 GRAPH 5 6 192 e This function divides the Y values of first curve by second curve go BRACKET e This function enables the user to define the left and right brackets to group a series of operations 5 cross PLOT This function enables the user to make a cross plot of two selected curves The new X axis value is obtained from the Y axis value of the second selected curve and the new Y axis value from the Y axis value of the first curve For example if the user wants to plot a load defection c
80. My Recent single Dissert single action s single_action abstat single actian matbsum single ackian rbdaut single actian rcForc single ackian sleaut single ackion sbabus aub Desktop acuments Computer Network File name Places Files of type Graph Data Cancel Figure 9 2 1 Select File dialog box eta Post supports the following result files generated from LS DYNA ABSTAT Airbag statistics BNDOUT Boundary nodal forces DEFGEO Deformed geometry DEFORC Discrete elements ELOUT Element data GCEOUT Geometries contact entities force and moment GLSTAT Global statistics JNTFORC Joint force data 168 eta Post 1 8 1 GRAPH MATSUM NCFORC NODFOR NODOUT RBDOUT RCFORC RWFORC SBTOUT SECFORC SLEOUT SPCFORC SSSTAT SWFORC TPRINT Chapter 9 Material energy statistics Nodal interface force Nodal group force Node data Rigid body data Contact interface resultant force Rigid wall resultant force Seatbelt data Cross section resultant force Sliding interface energy single point constraint SPC reaction force Subsystem statistics Spotweld rivet force Temperature data 9 2 1 AIRBAG STATISTICS ABSTAT The user can plot airbag statistics with abstat file The following types are included eta Post 1 8 1 VOLUME PRESSURE INTERNAL ENERGY DM DT IN DENSITY DM DT OUT TOTAL MASS GAS TEMPERATURE 169 Cha
81. ODE DF in the index file X Y Z and x y z signify the translational constraint and rotational constraint respectively Figure 7 22 1 Nodal Constraint 108 eta Post 1 8 1 POSTPROCESS Chapter 8 Chapter POSTPROCESS The functions in the POSTPROCESS menu allow the user to graphically display and manipulate analysis results There are 5 buttons in the post processing tool bar as shown in Figure 8 1a and 12 special functions for eta DYNAFORM sheet metal analysis as shown in Figure 8 1b a General Post process function icons b The special icons for et DYNAFORM Figure 8 1 Post process function icons Once a function in the tool bar is selected the POST PROCESSING CONTROL WINDOW appears Each function allows the user to graphically display and manipulate a specific result for stamping simulation The user selects the desired Stamping Simulation Result Result Components and FRAME RANGE and controls the display via display panel or shows the result such as setting the display velocity and displaying some options of the result NOTE These postprocess menus can only be activated after loading the result files of LS DYNA Please refer to FILE OPEN in Chapter 3 FILE MANAGER The user is not able to operate the buttons on the control dialog box when some control option windows are active A detailed description of each function 1s given in the following sections eta Post 1 8 1 109 Chapter 8 POSTPROCESS GENERAL POST PROCESS F
82. OPBAND ATTENUATION MIN ATT 1 0 DB Stopband attenuation must be greater than 1 0 dB The Stopband frequency and maximum Passband Ripple should not be too close to either the lowest or highest limits Attenuation factors commonly range between 10 and 50 It is recommended that the user choose a Passhand frequency that is approximately 5 to 20 of the number Too small a number will lead to a computational error and too large a number will cause the program to stall After entering the parameter click OK to accept it and exit DATA CONTROL window Then click APPLY to display the filter result SAE FILTER This function allows the user to smooth curves according to the Society of Automotive SAE filter specification Select the SAE type from the pull down list Click SELECT to display the DATA CONTROL window The program will prompt the user to enter the Cutoff value as shown in Figure 9 4 11 The user may enter any appropriate value in the DATA CONTROL window which displays the default values of 10 190 eta Post 1 8 1 GRAPH Chapter 9 DATA CONTROL Cutoifr 10 000000 Figure 9 4 11 DATA CONTROL window of SAE filter SAE After entering the parameter click OK to accept it and exit DATA CONTROL window Then click APPLY to display the filter result BUTTERWORTH FILTER This function allows the user to smooth the curves according to the Butterworth filter specifications Select the BUTTERWORTH from the pull down list Click SE
83. PART ATTRIBUTE function MATERIAL COLOR The program provides adjustment for AMBIENT DIFFUSE and SPECULAR color by clicking the color box next to the property type The program displays a color control window as shown in Figure 4 6 2 eta Post 1 8 1 39 Chapter 4 EDIT MENU Diffuse color LL AG OK E Cancel Figure 4 6 2 Light Source Property Control Window The user may click and drag the marker in the color map window to change the color of the selected material The program updates the model with the new material color in the graphic display window in real time It also shows the new material color in the color box on the lower left side of the control window The user can compare the new material color with the original color on the right The user may also click and drag the slider in the vertical bar to adjust the brightness of the selected material The RGB values of the material color are shown in the column on the right side of the control window The user may define the material color by entering the RGB value directly The user may choose any of the following four scales to show the color values Byte RGB Hex and HSV When the desirable color is obtained click OK to accept the color and exit the control window Otherwise click CANCEL to reject the color and exit the control window SHININESS The user may click and drag the slider to adjust the shininess of the selected material RESET MATERIAL Reset the
84. PATH Purpose Specify the rbout file name Card Format Card 1 Default VARIABLE DESCRIPTION FILENAME File name of rbout file 80 characters maximum If there is no path character or V then means under the same directory 202 eta Post 1 8 1 INDEX FILE FORMAT Appendix A BOUNDARY SPC NODE DF Purpose Define nodal single point constraints in certain case stage Card Format Card 1 1 2 3 4 5 6 7 8 VARIABLE DESCRIPTION NID Node ID CID Coordinate system ID Default for global coordinate system See keyword DEFINE COORDINATE SYSTEM in LS DYNA manual TC Translational constraint EQ 0 no constraints EQ 1 constrained x displacement EQ 2 constrained y displacement EQ 3 constrained z displacement EQ 4 constrained x and y displacements EQ 5 constrained y and z displacements EQ 6 constrained z and x displacements EQ 7 constrained x and y and z displacements RC Rotational constraint EQ 0 no constraints EQ 1 constrained x rotation EQ 2 constrained y rotation EQ 3 constrained z rotation EQ 4 constrained x and y rotation s EQ 5 constrained y and z rotation s EQ 6 constrained z and x rotation s EQ 7 constrained x and y and z rotation s CSID Case ID see CASE_ MULTIPLE Default for all stages END Purpose Define the termination of the Index file must be located in the end of the idx file eta Post 1 8 1 203 HARDWARE AND SOFTWARE REQUIREMENTS Appendix B APPEND
85. RVE COLOUR function AXIS OPERATION This function enables the user to modify the attribute of the axis including Log X Log Y Grid display and change the height of Y axis LOG X and LOG Y toggle This function enables the user to change the X and Y coordinates values to logarithmic values GRID This function enables the user to display X and Y orthogonal grids on the curve Refer to Figure 9 7 for a typical graph window with GRID option MODIFY Y AXIS This function enables the user to specify the height of the Y axis in the graph window Click anywhere along the Y axis to define a new height The user can click Modify Axis again to cancel the operation X TITLE This function allows the user to modify the title of X axis It 15 located below the X axis Y TITLE This function allows the user to modify the title of Y axis It 1s located at the left side of the X axis MIN MAX X Y This function allows the user to change the range of X and Y coordinates The program plots only the portion of the curve s within the defined coordinate range NEW VALUE eta Post 1 8 1 GRAPH Chapter 9 This function allows the user to modify the Y value of a selected point Click a point on a curve to display the x and y coordinates in the corresponding text boxes The value in X text box cannot be modified The user can modify the value in the Y text box 20 MODIFY Y This function allows the user to modify Y value After the use
86. Recall Figure 4 8 5 Part Attributes control window No Contour There are some functional buttons on the Part Attributes control window for the user to easily operate the parts 6 ALL PARTS This function allows the user to select all the parts in the current database 7 DISPLAYED This function allows the user to select all the parts that are displayed in the current window 8 REVERSE This function allows the user to reverse all the selected parts All the selected parts will be unselected and all the unselected parts will be selected 9 CLEAR Turn all the selected parts to unselected eta Post 1 8 1 47 Chapter 4 EDIT MENU 10 UNDO This function allows the user to cancel the last selection operation before pressing the Apply button 11 REDO This function allows the user to cancel the UNDO operation 12 APPLY This function allows the user to execute the selected operation 13 REMOVE ATT This function allows the user to remove the current specified part properties 14 SAVE This function allows the user to save the current part attributes to a file A Save file dialog box will pop up and prompt the user to enter a file name after clicking this button 15 RECALL This function allows the user to load the previously saved part attribute file and set it as the current parts attribute 4 9 ROTATE VIEW This function allows the user to enter the accurate rotation angle Clicking on this men
87. STRESS PRIN STRESSI PRIN STRESS2 PRIN STRESS3 SHEAR STRESS PRIN STRAINI PRIN STRAIN2 THINNING NORM STRAIN The components regarding DISPALCEMENT are listed below DISPLACEMENT X DISPLACEMENT Y DISPLACEMENT TOTAL VELOCITY X VELOCITY Y VELOCITY Z VELOCITY TOTAL ACCELERATION X ACCELERATION Y ACCELERATION Z ACCELERATION TOTAL If the user selects the temperature contour Celsius or Kelvin will display in the current component The default unit of output result from eta DYNAFORM is Kelvin 116 eta Post 1 8 1 POSTPROCESS Chapter 8 8 3 2 LAYER The user can select any layer in the element to show the result The number of layers is consistent with the integration point along the element thickness direction The Middle layer is the default setting in the program 8 3 3 LOCAL This function is used to display the result of contour plot in the local coordinate system during animation 8 3 4 REFERENCE FRAME This function is used to display the difference of contour result between one frame to which the slider is dragged and every frame after this frame during animation 8 3 5 ELEMENT RESULT This option allows the user to show the result by the unit of element instead of the contour interpolated by nodes 8 3 6 INCREMENT This function is used to display the difference value between two
88. Select hy Cursor Select by Window Select by Polygon Select by Freehand Select by Displayed Reject Last Selected Redo Abort Selected List Value Option List Table Export List Exit Figure 8 3 13 Select Node Control Option The user can research correlative contour value by inputting Node ID or Element ID Select the desired option form the list The default setting 1s by mouse pick The user can also select nodes by dragging window polygon or free hand region The user can select the List Value Option as shown in Figure 8 3 14 to select the display mode of node value modify the font size and the display precision of node value List Value Option List Font 12 lt of Decimal 1 zFlaat Value Type F v zList Area Iv MIN M MAX Indicator Scale Figure 8 3 14 Node value display Option eta Post 1 8 1 127 Chapter 8 POSTPROCESS There are two methods to display node value one is table and the other is label Default option is table Once the nodes are selected the highest 10 values are listed at the lower left corner of GRAPHICS DISPLAY WINDOW as shown in Figure 8 3 15 If Label option is selected node value is displayed near selected node as shown in Figure 8 3 16 STEP 17 TIME 0 046900 COMPONENT Thickness 0 342 0 408 0 474 0 539 0 605 0 671 0 737 0 803 0 868 0 934 1 000 Index TAYER 636502 0 669916 2 1637102 0506655 7
89. T Reset the light property to the default setting 2 LIGHT SETTING LIST 38 This function is used to display the defined light property in the list eta Post 1 8 1 EDIT MENU Chapter 4 SAVE LIGHT This function is used to save the defined light property and add it to the list DELETE This function is used to delete the unnecessary light property from the list RECALL LIGHT This function 15 used to recall light property Select the desired light property in the list and click this button to recall it IMPORT LIGHT This function is used to import the saved light property setting file to the light setting list EXPORT LIGHT This function is used to save the defined light property in file format EXIT Close the Light Property window and exit the function 4 6 MATERIAL PROPERTY eta Post allows the user to modify material properties for rendering the part The Material Property only takes effect when SHADE and MATERIAL COLOR options are both toggled on The control window is illustrated in Figure 4 6 1 Material Property Material Stee v Ambient pj Diffuse N specular 55 Shininess Reset Material Exit Figure 4 6 1 Material Property Control Window MATERIAL Users may select the material from the Material drop down list The available materials are aluminum steel copper gold iron silver bronze and rubber Users may assign a material to the selected parts by using the
90. UNCTION ICONS The post process function icons are always displayed on the tool bar of the Post Processor after the user loads the result files from LS DYNA or NASTRAN These are common functions for various finite element analyses 8 1 UNDEFORM ni This function is used to display the un deformed model shape If displayed in plot the model will return to the original state once this option is selected 8 2 DEFORM This function is used to animate the deforming process of the model and display displacement of every step result The operation options are shown in Figure 8 2 1 Deform Operation Undeform Scale Factor 1 0 Frames Single Frame 1 0 000000 2 0 003416 3 2 006931 4 0010245 5 0 013663 From 1 20 Inr 1 b ll IH 3l Frame Number 4 Lue FramesiSecant m Figure 8 2 1 Deform control window 8 2 1 DEFORM OPERATION 1 SHOW UNDEFORM SHAPE This function enables the user to toggle on off the un deformed geometry of the model The 110 eta Post 1 8 1 POSTPROCESS Chapter 8 deformed parts are plotted in its original color while the un deformed model is plotted in white 2 SCALE FACTOR This function is used to adjust the default scale factor of the deformed part The default is 1 It scales the plotted components to a user defined proportion and displays them on screen For example if the user plots the deformed result he she could magnify the deformation by a factor of ten to se
91. VIOUS POINT to use the previously defined reference point The program draws a line along the local W axis as the directional line Move the mouse along the directional line to obtain the new section cut nearest the cursor Click the left mouse button to accept the new section and exit the function The distance between the new section location and the reference point is dynamically displayed in the window The user can also define a curve and translates the section cut along the curve making the section cut vertical to the curve all the time Toggle on DEFINE PATH BY CURVE and click the SELECT PATH CURVE button and then select the curve in the graphical area After selecting the curve the section cut can be dragged and moved along the curve ROTATE Click the MOVE SECTION BY MOUSE button and eta Post displays a Control Window for the user to define the rotation axis Click DEFINE ROTATION AXIS to select two nodes in the current section as the W Axis Or click PREVIOUS AXIS to use the previously defined rotation axis The user can drag the mouse to rotate the section along the W axis Click the left or right mouse button to accept the new section and exit the function The eta Post 1 8 1 TOOL Chapter 5 rotate angle of the new section based on the reference section is displayed in the window MOVE OR ROTATE SECTION BY INPUTTING DISPLACEMENT This function allows the user to input offset value to move section line position Offset value
92. a a 156 Jant Line atthe end Of the A 156 Outline of the Un deformed blank cesses 157 Edge Movement Control Window 158 Define Material WOVCMe Nts oen MATHIE METH eds 159 eB E D DD DD T 160 Select Elements Opti OM asna etse ci p ete a e Seek EE nasties 161 snow Test Result by id doi o Hia o d aM dO da due 162 Show Test Result by Region 162 dta Boden bet bt ba tede 163 Blank Movement asi dents aes Sani 164 Bormability ots oue Eo ats a E oops api eth 165 PAROV Bla Rt RT 165 Graph start Up WIDOOW e aur Epod Pao pode ux UD deba 167 gt 168 Crea NC ONO WAM OW a ono edt Gun edu 178 RSID Eee cabot cited cb ene rM sae 179 Cur iene ols ein OBI OOID E ot oto o dieti deti errr tree ernie 180 An inserted image form clipboard to MS Word 180 Curve Attribute control window acinar TU ee aee eer edo 181 XI TABLE OF FIGURE XII Figure 9 4 4 Figure 9 4 5 Figure 9 4 6 Figure 9 4 7 Figure 9 4 8 Figure 9 4 9 Figure 9 4
93. a antes cea CADIT ME 126 Select Node Control Option scit 127 Node value display aree hoe ta Ee Pase E 127 Display node value by table 128 Display node value by eiii oe etia tu E ede estate os Ea pe ce EE pe oe RS 128 Display Wal KOT qo da M d I mU dedi dM d 129 Displascmarker aud E Ene EDS OR nace Gai ERE ER Enc FR Faden 129 Table list Control WIBDOOW bett btt tede 130 Vector Operation control 1 nennen eene nnns 131 TOOL wear Control WInGOW sess eases o eate eia or eset oe asinine 133 Dynamic parameter optom i on Capa gus Seas eiu LEE Ca ud 134 Tool wear schematic eee e eoe e eet ee eo 135 ism eter 136 Wear Result of deu aetates 137 Wear Result of the current Stepo sns aes ches save duo rur den Pea aeuo chen Due dua ess E Bone RR quss 137 PED COMO III TET 140 FED Curve and e Ape d uta Me 141 PED Curve Hle format iode ou eem 142 eta Post 1 8 1 Figure 8 6 4 Figure 8 6 5 Figure 8 6 6 Figure 8 6 7 Figure 8 7 1 Figure 8 7 2 Figure 8 7 3 Figure 8 8 1 Figure 8 9 1 Figure 8 10 1 Figure 8 10 2 Figure 8 10 3 Figure 8 11 1 Figure 8 11 2 Figure 8 12 1 Figure 8 12 2 Figure 8 13 1 Figure 8 13 2 Figure 8 13 3 Figu
94. activated The user can input the range and spacing of the frame and then press ENTER or click button to confirm eta Post 1 8 1 111 Chapter 8 POSTPROCESS NOTE The PLAY button is only available when multiple frames are selected 2 RESET This function clears all the previous selection operations 8 2 3 ANIMATION OPERATION This function allows the user to animate the selected frames as shown in Figure 8 2 3 l 2 112 PLAY IH 4 Frame Number FramesiSecand 25 I MQ Figure 8 2 3 Animate This function is used to animate the selected frames Once the frame number is bigger than 1 the PLAY button can be used otherwise disabled After clicking the PLAY button the other three buttons PAUSE STOP and RECORD are activated as shown in Figure 8 2 4 PAUSE M Frame Number 1 Frames Second 29 CCF Figure 8 2 4 Play Status This function is used to pause the animation as shown in Figure 8 2 5 In this mode the four other functions are enabled for use ERU ERE ERR Frame Number FramesfSecond 25 E Figure 8 2 5 Pause Status eta Post 1 8 1 POSTPROCESS Chapter 8 3 10 pest Display first frame 4 previous FRAME Display the previous frame NEXT FRAME Display the next frame M rASTERAME Display the last frame M stop Stop the animation This fun
95. apter 8 FLDO is the lowest point on the forming limit curve The user can move the forming limit curve along the Y axis by changing the FLDO value SAFETY MARGIN The user can define the size of the region which has crack tendency SAFETY MARGIN shows the range below the forming limit curve The default is set to the value which is 0 1 less than the fracture limit curve ALLOWABLE THINNING The allowable thinning of material in bi oriented stretch mode is usually set to 3096 ESSENTIAL THINNING The function determines the minimum deformation percent required by the material to reach sufficient deformation The default 15 2 ALLOWABLE THICKENING The function determines the shrink percent for the material not to wrinkle The default is 196 4 CURVE FILTER This function is used to divide FLD into 8 regions Each region is shown in a unique color An example of FLD is shown in Figure 8 6 4 LS DYNA user input STEP 20 TIME FLD middle layer 100 60 40 20 0 064901 CRACK RISK OF CRACK SEVERE THINNING SAFE INSUFFICIENT STRETCH WRINKLE TENDENCY WRINKLE Figure 8 6 4 An Example of FLD Analysis All the regions except CRACK and SAFE can be turned off via options in CURVE FILTER 5 SHOW FLD WINDOW toggle This function allows the user to close or show FLD window eta Post 1 8 1 143 Chapter 8 POSTPROCESS 8 6 3 EDIT FLD WINDOW This function allows the user to change the size and
96. be deleted 6 7 2 SELECT TEXTURE This function is used to select the image texture to be painted on PART 6 7 3 SELECT MAPPING STYLE This function enables the user to select the Mapping Style There are two styles available DEFAULT XY MAPPING and DEFINE XY MAPPING 6 7 4 DEFINE MAPPING PLANE This function is used to define the mapping plane of image texture Please refer to Section 5 1 1 for a detailed description 6 7 5 PAINT This option is used to paint the selected image texture on the specified part as shown in Figure 6 7 3 Figure 6 7 3 Painted effect 6 7 6 ERASE This option is used to cancel the image texture painted on the specified part eta Post 1 8 1 9 Chapter 6 APPLICATION 6 7 7 PAN This option is used to move the image texture on the specified part 6 7 8 ROTATE This option is used to rotate the image texture on the specified part 6 7 9 SIZE This option is used to scale the image texture on the specified part 6 8 IRONING RATE This function is used to calculate ironing rate such as Cup Drawing The control window 15 illustrated in Figure 6 8 1 Ironing Rate lt Paramters Die Radius Define Die Radius Punch Radius Define Punch Radius Thickness lroning Riate Exit Figure 6 8 1 Ironing Rate Control Window DEFINE DIE RADIUS This function is used to calculate die radius After the user selects three points in die by the mouse the program wil
97. conditions this option is not necessary 7 16 APPLY LOCAL LIGHT If this option 15 selected local light source will be used The positions of two local light sources can be adjusted by using the key combination of CTRL SHIFT the left mouse button Otherwise global light source is adopted and only the direction of the global light source can be adjusted by using the key combination of CTRL SHIFT the left mouse button 7 17 APPLY MOUSE TRACKING When selecting this option eta Post can display information about elements or nodes that are corresponding to the cursor position in real time LIST VALUE 7 18 APPLY MODEL CONFIGURATION If this option is toggled on the program will automatically return to the display location for the previous model operation when re opening the result file 7 19 APPLY FRAME DESCRIPTION The program will display the frame description when this option is toggled on If the user set special frames such as frame to display distance in the AUTOSETUP of DYNAFORM Preprocess these special frames will be displayed in the frame operation control window once this option is toggled on The frame description is output by AutoSetup to the index file and expressed in the keyword D3PLOT DF In the deformation contour and vector operations in animation the frame description will be displayed in the graph area which supports to display multiple descriptions simultaneously as 106 eta Post 1 8 1 OPTION illustrated
98. ct by Cursor U Along X Axis U Along Y Axis U Along Y Axis U Along Z Axis U Along Z Axis Reject Last Path Operation Translate Rotate Move Path By Mouse Figure 6 15 3 Define path dialog box eta Post 1 8 1 OPTION Chapter 7 Chapter 7 OPTION The functions in this menu are shown in Figure 7 1 The user can customize the interface appearance in the graphic window Option v Axis Iv Title Iv Color bar Max Min Marker M Logo Normal Color Boundary Line Elem Outline Elem Orientation Active Contour Range Iw Overall Contour Range Define Rotation Center Display Graph on Screen Apply YFG Layout Apply Second Render Apply Local Light Apply Mouse Tracking Apply Model Configuration Apply Frame Description Apply Continuous Colorbar Apply Blank Material Color Figure 7 1 Option Menu A detailed description of each option is given below 7 1 AXIS toggle This option is used to toggle on off the global coordinate system XYZ displayed in the lower left corner of the graphic window 7 2 TITLE toggle This option is used to toggle on off the title of the result file displayed in the upper left corner of the graphic window eta Post 1 8 1 103 Chapter 7 OPTION 7 3 COLOR BAR toggle This option is used to toggle on off the color bar at the right corner of the screen 7 4 MAX MIN MARKER toggle This option is used to con
99. ction is used to record the current animation as AVI or E3D files AVI file is a Microsoft multimedia file which can save a series of 2D images E3D 1s a file format developed by ETA which can save 3D animation and play it in eta 3Dplayer During animation click button and the program displays the WRITE FILE window for the user to choose the file type and enter the name and location for the file Select AVI avi or E3D e3d format to save the file enter a file name and save to the designated directory The default directory is where the d3plot files located After entering the file name and selecting a directory click the SAVE button in the WRITE FILE window For AVI file type eta Post displays the SELECT COMPRESSION FORMAT for the user to select the compression type and quality The program writes the AVI or file for the current animation FRAME NUMBER After the animation is paused this function allows the user to drag the slider to the desired frame to display the result During animation the frame number can be adjusted automatically according to the current step FRAMES SECOND This function allows the user to adjust the speed at which the animation is running by altering the number of frames per second The user can drag the slider to adjust the frame rate Once the frame rate is selected the animation will continue at this frame rate until it is paused or stopped 8 3 CONTOUR AX The functions in th
100. d nodes the program displays the time history curve of the nodal displacement result in the new curve window as shown in Figure 5 11 2 74 1 6 1 TOOL Chapter 5 Control Option Displacement gt Figure 5 11 1 User Select Control Window Displacement components marked with in Figure 5 11 1 are plotted at the same time The default setting is to display 3 displacement components and total displacement Click any one of the components to remove it Click once again to select this component eta Post 1 8 1 75 Chapter 5 TOOL Lurve Window 1 ioj xl Displacement X NODE 305926 _ _Displacement_ NODE 305926 Displacement 305926 Displacement Total NODE 305926 4 2 E AN Dc T lm IL E 4 4 2 i m e N M aim 4 4 8 8 b 2 1 1 14 Print Clipboard Time 2 Operation Save Figure 5 11 2 An Example of Node Displacement Curve 5 12 DISTANCE CURVE This function is used to draw the Distance Curve between two selected entities There are four available types of distance curves NODE NODE NODE ELEMENT NODE PART and NODE PLANE Figure 5 12 1 shows the Control Window and Figure 5 12 2 shows a NODE PART Distance Curve 76 Distance Curve Component a 1 Total 2Cume gt Node Part Hode Execute Figure 5 12 1 Distance Curve Control Window eta Post 1 8 1 TOO
101. defect depth The red indicates the highest defect level on the mesh The user is allowed to define different defect levels as an evaluative criterion Element Result means to calculate according to the element result Otherwise it will calculate according to the node result Compensate Initial Def eta Post 1 8 1 101 Chapter 6 APPLICATION 102 If this option is selected the initial defects will be removed from the displayed defect results Otherwise it will calculate the current defect Show Test Region This function is used to display test results of elements for selected areas By Elements Displays the test result by element By Region Boundary Display the test result by region boundary Define Path It enables the user to set a gauge path on check area by selecting two points or one point plus the direction of a coordinate axis Click the Exit button to view the curve of check value path length in curve dialog box The user can define multiple paths Path Operation The user is enabled to move the path dynamically by Translate or Rotate in the Define Path dialog box as illustrated in Figure 6 15 3 Click the Move Path By Mouse button will enter the dynamic move status Click the Reset button will reset the moved path back to the status before entering the dynamic move Clear Path It clears the defined paths and closes the curve window Coordinate X Value Y Value Value Apply Input Value Sele
102. during the whole deformation process Define Path is used to select the required element from the graphics After defining and exit the program automatically calculates the change of strain path of the selected element during the deformation process and individually displays it in FLD as shown in Figure 8 6 6 Click Clear Path to clear the defined strain path and FLD will return to the default FLD of all elements under current frame 144 eta Post 1 8 1 POSTPROCESS Chapter 8 OP10 STEP 17 TIME 0 049391 FLD middle layer CRACK RISK OF CRACK SAFE WRINKLE TENDENCY WRINKLE SEVERE WRINKLE INSUFFICIENT RETCH ETA POST Figure 8 6 6 FLD Strain Path 8 6 7 FLD REGION This function is used to display the FLD in the specified region Other regions can be displayed in metallic gray The user can select element by cursor select window polygon or free hand region as shown in Figure 8 6 7 LS DYNA user input LS DYNA user input STEP 10 TIME 0 021176 STEP 10 TIME 0 021176 FLD middle layer FLD middle layer 4 00 PART P000002 PART P000002 Figure 8 6 7 FLD Region 8 7 THICKNESS zd This function is used to simulate the contour of blank thickness during forming to estimate the forming quality The program displays a control window as shown in Figure 8 7 1 Refer to Section 8 1 and 8 2 for the description of other buttons eta Post 1 8 1 145 Chapter 8 POSTPROCESS Thickness Operati
103. e filters The computation is less for FIR filters than that for Butterworth However Butterworth filter gives more power and less signal loss 9 NEW GRAPH This function allows the user to create the new graph window to plot the new curve s By default the new curve is plotted in the current graph window when the user clicks APPLY 9 4 6 SAVE This function allows the user to save all the curves in the current graph window as gr file Select Load to reread in the saved file eta Post 1 8 1 193 INDEX FILE FORMAT Appendix A APPENDIX A INDEX FILE FORMAT 2011 7 Version 4 INTRODUCTION Like the format of LS DYNA input deck Index file uses keyword input which provides a flexible and logically organized database that is simple to understand Some of the keyword cards in Index files are the same as that in LS DYNA such as MAT SECTION DEFINE CURVE etc The formats below are unique in index files HEADER Generally header contains the following two comments eta D YNAFORM index file creation date KEYWORD VERSION version number of index file index For example eta D YNAFORM Index File February 19 2008 at 12 00 44 KEYWORD VERSION 02 DATABASE FILE Purpose Specify the database file name of the index file Card Format Card 1 Variable FILENAME Default VARIABLE DESCRIPTION FILENAME File name of database up to 80 characters eta Post 1 8 1 195 Appendix A INDEX FILE FORMAT DATABASE STAT
104. e recorded It is necessary to note that there is another file type of 1dx for eta Post If the file is a multi stage file in sheet forming the program will read a complete set of multi stage postprocessing result into postprocessor via reading the corresponding idx file eta Post also supports DPM FIC result file dpm fic NISA2 result file dat INC Solver result file fas and STL file 50 3 2 IMPORT This function allows the user to import lin data file supported by DY NAFORM VPG FEMB and the 28 eta Post 1 8 1 FILE MANAGER Chapter 3 standard exchange format of IGES for CAD The Import File dialog is shown in Figure 3 2 1 Look in amp t 2 1 3 MSTEP blank est mstep 3D lin My Recent Untitled mstep lin Dacus Untitled_mstep_3D lin Untitled mstep Fl lin Desktop Documents Computer Ua My Network File name Places Files of type Femb Line D ata M Cancel Figure 3 2 1 Import File window Users can select a DYNAFORM VPG FEMB Line or IGES Data file then click the OPEN button or double click the desired file icon from the file name list to import it NOTE IMPORT function is disabled until d3plot file or NASTRAN punch output2 file is read in 3 3 EXPORT This function allows the user to export the element node in the current model as NASTRAN file or export the line in the current model as DYNAFORM VPG FEMB Line file The Export File dialog
105. e small deformation not readily visible during animation 8 2 2 FRAME OPERATION This function allows the user to select desired frame s to plot single frame or animate more than one frame deformation as shown in Figure 8 2 2 There are 6 options in it 0 000000 Single Frame 1 0 000000 0 000779 All Frames 2 0 000779 0 001558 Euh Eramss 3 0 001558 0 002338 4 0 002338 0 003117 odd Frames 5 0 003117 EM ENG From To16 Inr Fange Figure 8 2 2 Frames Operations 1 FRAMES This option allows the user to select frame s Single frame can be plotted and multiple frames can be animated The selected frame s will be highlighted in blue SINGLE FRAME The program will display the deformation result of the frame immediately when the user selects Single Frame ALL FRAMES All frames are selected once this option is picked EVEN FRAMES The even frames are selected once this option is picked ODD FRAMES The odd frames are selected once this option is picked e SELECT FRAMES The program selects any frame once this option is picked Uncontinuous frames can be selected by clicking the left mouse button while holding CTRL A continuous set of frames can be selected by clicking the left mouse button while holding SHIFT RANGE The RANGE window provides some options to select frames as shown in Figure 8 2 2 Once RANGE is selected the input box below the frame window will be
106. echnical support The menus and functions will be described in the related sections 1 3 ICON BAR The icon bar is designed to give the user easy access to the most commonly used functions in eta Post Some of the functions represented in the icon bar are also located in the different menus The user may simply click these icons to activate the functions instead of navigating through the menus 4 eta Post 1 8 1 STRUCTURAL OVERVIEW Chapter 1 Open a file Create a postscript file of the display area and send it to the printer default or write the image to a file Prior to printing the printer must be initialized to accommodate the print out from eta Post software L 3 d PART ON OFF This function enables the user to turn the selected part s on off Once the function is selected the PART ON OFF dialog window 15 displayed as shown in Figure 1 3 1 Part Operation Show Element Type I Beam Iv Shell Enter ld All On All Off Reverse Undo Redo Figure 1 3 1 PART ON OFF Window NOTE When the PART ON OFF dialog box is displayed only the VIEW OPERATION functions are enabled for use other functions are disabled PART and PART SET option Default setting closes and opens parts If the postprocess result includes part set definition the option can be activated At this time the opening and closing object is part set eta Post 1 8 1 5 Chapter 1 STRUCTURAL OVERVIEW SORT BY
107. ecting User Defined the user may drag the mouse up and down to rotate the light tube in its plane Left click or right click the mouse to confirm the result and exit NO OF STRIPS Set the number of strips The default number is 10 STRIP WIDTH Set the strip width SPACING Set the strip spacing Figure 5 4 2 Face Reflection Result eta Post 1 8 1 67 Chapter 5 TOOL Figure 5 4 3 Surface deflect detected from light strip 2 STRIP CONTROL 68 AUTO FILL Select this function to automatically reset the width and spacing of the light tubes according to the current model size and light tube plane position to make strips evenly distributed on the model face e SHOW LIGHT STRIP Select this function to re plot the current examination result MOVE LIGHT STRIP This function allows the user to drag the mouse to move the light strip Left click or right click the mouse to confirm the result and exit CHANGE LIGHT DIRECTION This function allows the user to adjust the direction of the light source plane The light source plane will dynamically rotate about the model center by moving the cursor up and down and the rotation axis 1s the axis of the light source Left click or right click the mouse to confirm the result and exit If the main part of the model is not located on the global X Y plane the user may use this function to adjust the light source plane to a desirable position REVERSE CONTRAST Select thi
108. en File dialog and allows the user to read result file or model file into eta Post The Open File dialog is shown in Figure 3 1 1 eta Post 1 8 1 2 Chapter 3 FILE MANAGER Look in C3 dir amp t MV B ecent Documents Documents My Metwork File name x Places Files of type LS DYNA Post d3plot d3drlf dunain d3plataa inl Lancel Figure 3 1 1 Open File Dialog To open result file or model data select File Type that will be read in Locate the desired file using the browser such as Q kj and click OPEN The model will be displayed in the Graphic Display Window and will be ready for post processing Eta Post supports d3plot d3eigv d3drif d3plotint d3mode and dynain files generated from LS DYNA as well as result files such as punch and output2 generated from NASTRAN The program will display the Select File window again for the user to select a corresponding Nastran model file after the Nastran result file is loaded It is necessary to select a matching model file in order for post processing the result correctly For eta DYNAFORM users the result files to process mainly d3plot files When displaying the result as shown in the above figure the program will automatically read in the following file to display all the data during the forming process if the user opens the first d3plot file If the user opens any other file the program will only read in the relevant data this fil
109. ent sizes The default value is 12 Pt 3 ARROW This function enables the user to select two points by cursor to draw an arrow in the graphic display window The direction of the arrow is from the first point to the second point The name of the arrow will be listed in the Label Arrow window 4 TEXT This function allows the user to add a text label in the graphic display window Enter a string of characters in the field above the TEXT button Press the TEXT button and then select a location on the screen by the mouse cursor The program will label the text at the selected location 5 DELETE Delete an arrow or a text label The program will highlight the corresponding arrow or text label on the screen as the user selects an arrow or text label in the list Click the DELETE button to delete the highlighted arrow or text label The user may combine the Shift or Ctrl key and mouse click for multiple selections 6 EXIT Exit the function 4 4 ROTATE LIGHT eta Post uses two light sources directed from the specific locations to the model This function allows the user to rotate the light sources along the screen X and Y axes The function only works when the SHADE option is turned The program displays the locations of the light source 1 and 2 and their lighting directions when the function starts The user uses the mouse to move the light sources on the screen The lighting effect is updated as the user moves the mouse The user may
110. enter OFF FLD DEFAULT SETTING CETTE a ISTART UP SETTING yd PRINTER SETTING efault Material TEEL DIRECTORY Cancel Figure 3 8 1 eta Post setting dialog box 3 9 QUIT Selection of this option ends the current eta Post session and returns to eta DYNAFORM pre processor when the user starts eta Post from eta DYNAFORM preprocessor If the user is executing eta Post from a stand alone mode this option terminates the eta Post software 34 eta Post 1 8 1 EDIT MENU Chapter 4 Chapter 4 EDIT MENU The functions in the Edit Menu allow the user to modify the setting of the model display Figure 4 1 shows the drop down list of the Edit functions Edit Create Line Delete Line abeli amp rrow Rotate Light Light Property Material Property Color Map Fart Attributes Rotate View User View Background Color Language Setting Figure 4 1 Edit Menu A detailed description of each function is given in the following sections 4 1 CREATE LINE This function enables the user to create a line by selecting a set of nodes In eta Post a line is formed by a sequence of points The program displays the line by a set of straight line segments between adjacent points in sequence The created lines are included in a new part The program displays a CONTROL OPTION window as shown in Figure 4 1 1 Control Option Select by Cursor End Pick Reject Last Reject All Figure 4 1
111. er to calculate the root of the Y coordinate of the selected curve If the Y value is negative the program will adopt the square root of its absolute value and maintain the negative mark 1 e 15 RECIPROCAL This function is used to calculate the reciprocal of Y coordinate for the selected curve This function allows the user to calculate the square root of the sum of the square of the Y M ee values for the selected curves The new value is For a two dimensional vector only two curves need to be selected This function will be activated after the user selects more than one curve eta Post 1 8 1 187 Chapter 9 GRAPH e Lod LOGARITHM This function allows the user to calculate the logarithm of the Y values of the selected curve The original Y value should be greater than zero NATURAL LOGARITHM o This function allows the user to calculate the natural Napierian logarithm of the Y values of the selected curve e 4 FAST FOURIER TRANSFORM This function allows the user to convert curve data from time domain to frequency domain response for signal processing analysis The FFT is a fast algorithm for computing the Discrete Fourier Transform DFT The DFT is a basic operation to transform an ordered sequence of data samples from a signal usually in a time domain into the frequency domain There are various implementation of FFT when the samples are not the square of two The algorithms adopted in eta Post can deal with bot
112. er to show the contour result for the currently opened part Take tailor welded blank for example the contour results for opening one blank and all blanks are different 8 3 10 CONTOUR SETTING This function will start the Contour Bar Options Control Window as shown in Figure 8 3 6 120 eta Post 1 8 1 POSTPROCESS Chapter 8 Contour Bar Options CGontour RGB Contour Level 20 V Contour Range MIN 132 0041 MAX 294 0084 Logarithmic Number of Decimal 2 Flaat Value Type Fo Font Size gt 12 y Height Scale 1 000000 Adjust Contour Bar Reset Contour Range Reset Contour Color O Apy Figure 8 3 6 Contour Setting Window 1 CONTOUR MODE There are four types of color settings RGB Red Green Blue RGBM Red Green Blue Magenta RG Red Green GRAY 2 CONTOUR LEVEL The contour level can be set from 2 to 20 The program default is CONTINUE If the user sets the contour level to any value between 2 and 20 the contour color is displayed as solid color for each contour level Figure 8 3 7 shows a contour plot with 12 colors in RGB mode eta Post 1 8 1 121 Chapter 8 POSTPROCESS JOBNAME 08027 STEP5 TIME 0 018781 54 827538 COMPONENT Thinning 48 535995 122 42 244457 35 952915 29 661377 23 369837 17 078297 10 786758 4 495218 1 796321 8 087861 14 379400 20 670940 ETA POST Figure 8 3 7 An Example for Contour Plot of 12 Col
113. eta Post User s Manual Version 1 8 1 Engineering Technology Associates Inc 1133 E Maple Road Suite 200 Troy MI 48083 2896 Phone 1 248 729 3010 Fax 1 248 729 3020 Support 800 382 3362 Engineering Technology Associates Inc ETA the ETA logo and eta Post are the registered trademarks of Engineering Technology Associates Inc All other trademarks or names are the property of their respective owners Copyright 1998 2013 Engineering Technology Associates Inc All rights reserved TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS ccccsccccccccssccscccccccsscsssccccsssssssssccssssssssssccssssssessseeess I TABLE OF FIGURE cccccccsccccccccccssccccsccccccssscsssccccssssssssscccssssssssscccssssseeess VII INTRODUCTTON 1 Chapter 1 STRUCTURAL OVERVIEW 66 3 DXX TE E 3 ee USI OM MUERE Md E M RUE ee EU 4 1G Sou 4 IDENSCDIES NODE 10 LSA IDENIIF Y CLEMENT 10 1 6 DISTANCE BETWEEN TWO NODES POINTS RAM 10 ANGIE BETWEEN THREE NODES 11 oXNGLEBETWEEN TWO RING EEEE E AE 11 1 9 RADIUS BETWEEN THREE NODES eH He her 11 11 TIGL OPTION cc crete 11 IJ PRIORITY daca sees 15 112 CONTROL WINDOW AND CONTROL OPTION
114. etermined by the formulas below a FLD Emin 0 027254 e 1 1965 0 Ea FLD Epin 0 008565 6 40 784854 amp 0 e File Define FLD curve by importing curve file fld Figure 8 6 3 shows an example of fld curve file format The user may refer to the format to create fld file FORM LIMIT DIAGRAM is the necessary keyword other keywords are optional Safety Margin defines the distance between safety margins in critical condition Type defines the curve type O for true strain 1 for engineering strain 2 for engineering strain in terms of percentage There is no FLD curve type in the old FLD format and the curve type is determined by FLD parameter in etapost config which is configuration file of post processor program So when using the old FLD curve the user should add type messages in FLD file or adjust the FLD parameters in the configuration file to match with FLD curve SFORM LIMIT DIXGRAM SAFETY MARGIN 0 10 TYPE 0 0 30 0 8540 0 20 0 5800 0 10 0 3910 0 00 0 3040 0 05 0 3316 0 10 0 3656 0 15 0 3910 0 20 0 4100 0 30 0 4328 0 45 0 4530 SFORM LIMIT DIAGRAM File Identifier must exist SAFETY MARGIN Safety margin 0 True i Engineering 2 Engineering Percent Figure 8 6 3 FLD curve file format 2 CURVETYPE This function allows the user to select the engineering or true strain for FLD evaluation 3 PARAMETERS e FLDO 142 eta Post 1 8 1 POSTPROCESS Ch
115. ext box under Coordinate manually then click the Apply Input Value button or select the first node by cursor in graphic area to define the origin of the LCS and enter an X Y Z coordinate to the text box under Coordinate manually and then click the Apply Input Value button or select the second node in graphic area by cursor to define the local U axis and enter an X Y Z coordinate to the text box under Coordinate manually and then click the Apply Input Value button or select the third node in graphic area by cursor to define the local U V plane The local V axis and W axis will be obtained according to the right hand rule Once the local coordinate system is defined the program will display the section lines in part color that represent the section cut of the model The program will activate other options as shown in eta Post 1 8 1 53 Chapter 5 TOOL Figure 5 1 3 for the user to change or operate the section line 4 DEFINE BY CURSOR LOC The user is allowed to define the cut plane by selecting two points or one point plus X Y direction from the screen Click the Reset button to return to the last defined cut plane section Cut Operation Display Secton only D section Line Pasitian t Fixed Define cut Plane Clear Section Cut View section Color Section Gut Options Section value Curve section Curvature Curve Measure Arc Length Section Comparison Cut Plane
116. formation will be applied See the input DEFINE TRANSFORM in LS DYNA manual CASENAME Name of case DEFINE TRIM Purpose Define a method of trimming in certain case stage Card Format Card 1 1 2 3 4 5 7 8 w w ILL EN Default VARIABLE DESCRIPTION TID ID number for trim method must be unique CSID Case ID see CASE MULTIPLE 200 eta Post 1 8 1 INDEX FILE FORMAT Appendix A LID 3D line ID see DEFINE LINE3D DEFINE COARSEN Purpose Define coarsening flag Card Format Card 1 1 2 3 4 5 6 5 8 Variable ICOARSE CSID ee o Foot d p VARIABLE DESCRIPTION ICOARSE Coarsening flag EQ 0 do not coarsen default EN 1 do coarsen CSID Case ID see CASE MULTIPLE D3PLOT DF Purpose Define a time points of d3plot output from LS DYNA Card Format Card 1 1 2 3 4 5 6 7 8 Default VARIABLE DESCRIPTION eta Post 1 8 1 201 Appendix A INDEX FILE FORMAT CSID Case ID see CASE MULTIPLE NF Number of frame TM Time of the frame CMT Comment of the frame REMARK It is allowed to use the same number of frame NF which means there are multiple comments CMT in the frame RCFORC PATH Purpose Specify the rcforc file name Card Format Card 1 Variable FILENAME Default VARIABLE DESCRIPTION FILENAME File name of rcforc file 80 characters maximum If there 1s no path character or V then means under the same directory RBDOUT
117. h cases e 15 Head Injure Criteria 15 is a special function for eta VPG It enables the user to calculate the maximum HIC15 value when the impact time is less than 15 milliseconds The control parameters in Figure 9 4 8 are used to convert unit The default HIC value in eta Post is calculated in the following units second for time and m second 2 for acceleration DATA CONTROL X Scaletto second 7 000000 Y Scaleo misec 7 h Augg Reset OK Cancel Figure 9 4 8 Unit Conversion Window e nad HIC 36 Head Injure Criteria 36 is also a special function for eta VPG It enables the user to calculate the maximum HIC36 value when the impact time is less than 36 milliseconds The unit conversion method of HIC36 is same as the above mentioned HICI5 3 FILTERS There are four different filters provided in OPERATION Average Filter Butterworth Filter 188 eta Post 1 8 1 GRAPH Chapter 9 Finite Impulse Response FIR SAE Filter AVERAGE AVERAGE FILTER allows the user to smooth the curve through averaging the value of a point with a number of neighboring points defined by the user The purpose of this operation is to make the curve smoother Select the AVERAGE type from the pull down list Click SELECT to display the DATA CONTROL window The program will prompt the user to enter the number of the points for averaging as shown in Figure 9 4 9 The user may enter any positive number in the input box which di
118. h gray wire frame 52 eta Post 1 8 1 TOOL Chapter 5 Control Option Define By Screen Point Coordinate X Value Y Value Value NEED Apply Input Value Select by Cursor W Along X Axis W Along X Axis W Along Axis W Along Y Axis W Along Z Axis W Along Z Axis Reject Last Figure 5 1 2 Define Cut Plane 1 ONE POINT Enter an X Y Z coordinate to the text box under Coordinate manually then click the Apply Input Value button or select a node in graphic area by cursor to define the origin of the LCS Select a global direction as the W axis of LCS and click EXIT The global direction may be X Y Or Z axis as listed in Figure 5 1 2 The local coordinate system will be defined at the first node with the W axes following the selected direction and U V axes paralleling to the other two global axes 2 TWO POINTS Enter an X Y Z coordinate to the text box under Coordinate manually then click the Apply Input Value button or select the first node by cursor in graphic area to define the origin of the LCS and enter an X Y Z coordinate to the text box under Coordinate manually and then click the Apply Input Value button or select the second node in graphic area by cursor to define the local W axis then click EXIT The local coordinate system will be defined at the first node with local W axis paralleling to the vector connecting the first and second node 3 THREE POINTS Enter an X Y Z coordinate to the t
119. he color bar and adjust the color distribution of the color bar by dragging this point with the cursor The user can also enter a value in the VALUE textbox and press ENTER to position the range of the color bar to be adjusted Color Scale Editor Color Scale lt 419 770900 sMWinimum 32 7 232178 sWMaximum 419 7 75931 Iv Auto Update Reset eta Post 1 8 1 123 Chapter 8 POSTPROCESS Color Scale Editor Color Scale 229 557852 Minimum 232178 zMaximums z2 19 7 75931 Iv Auto Update Reset Figure 8 3 9 Adjust Contour Bar 6 REVERSE CONTOUR BAR This function allows the user to reverse the color of the contour in animation as shown in Figure 8 3 10 SO0009 cac cCFOEZ OUE LEC cLcb00 67 L7 SPOS 5068 6 gEGLBS EL bcbStr 97 gL BOE GEL cU Gasen So anc668 265 cBUEDZ TGE o 99 9 EGF G6c 6t Sts 90000959 cre 00 Bac 7 EC 0 67 GFIGF ELL SESLOG EL belSrrss aLECZL ee 6880 697 an6668 ACE 0 DGE 8 0020 SocO6r Figure 8 3 10 Reverse Color of Contour Bar 7 RESET CONTOUR RANGE This function resets the contour range to the default maximum minimum values 8 RESET CONTOUR COLOR This function restores the contour plot color to the initial state 9 NUMBER OF DECIMAL The number of decimal can be set from 1 to 7 The program default 1s 2 Click the APPLY
120. he defined operation is valid and the user can press APPLY to perform the operation If the color of the expression is red it indicates that the expression is not correct The user may use the UNDO button to erase the last operation The user may also click the text box in RESULTING CURVE and use the keyboard entry to edit the expression However the latter method is not very convenient and is not recommended for the new user APPLY This function executes the defined operations in the Resulting Curve window eta Post 1 8 1 GRAPH Chapter 9 7 UNDO This function allows the user to cancel the last operation The user may click UNDO many times to correct the operation 6 CLEAR This function allows the user to erase all the defined operations at any time while defining the operation NOTE During the operation of curves some curve operations require the sample frequency and intervals at the same time e g binary arithmetic operation Some other operations require the number of samples e g Differential Integral etc During these operations if the parameters are not provided the program will display an error prompt message There are four filters as discussed earlier in this chapter All the filters have the optimized default parameter settings for convenience There are two categories of these filters non recursive and recursive Butterworth filter is a lowpass recursive filter while the FIR and average filters are non recursiv
121. his function allows the user to check the distance between the specified tool and blank It would help the user to see the contact condition during forming by animating the distance between blank and tool Figure 8 10 1 shows the control window of the function Refer to Section 8 1 and 8 2 for a description of other buttons eta Post 1 8 1 149 Chapter 8 POSTPROCESS Blank Taal Distance Operation Horm Direction Element Result Define Tool Blank by Element Contour Setting Expart Contour Line Export Contour Value List Value Frames Single Frame T Reset 0 000000 0 002400 0 004800 0 007799 0 009599 13 Frame Humber Frames Second 10 OES Figure 8 10 1 Blank Tool Distance 1 NORM DIRECTION If this option is selected the distance between blank and tool will be checked along the normal direction of the selected tool Otherwise the distance will be checked along the tool motion direction 2 DEFINE TOOL This function allows the user to select the tool for calculating distance The program displays the Select Part Control Option window as shown in Figure 8 10 2 150 eta Post 1 8 1 POSTPROCESS Chapter 8 Control Option Select by Cursor Figure 8 10 2 Select Part Control Option Users can select tool s by cursor select window polygon and free hand region 3 BLANK BY ELEMENT calculating distance region This function allows the user to select element s
122. hows the SELECT FILE window eta Post 1 8 1 Z1 Chapter 2 GETTING STARTED Look in C3 dir fender do t L spring back single action d3plotakol t single action single_action d3plotako My Recent single_action d3plot single action d3plotal Documents Is single ackian d3plataa E single action d plotal01 single action daplotab E single_action d3plotaloz Ies single action d3plotac Ies single action d3plotalo3 Is single action d3plotad single action dsplotalo4 Ies single action d 3plabae La Desktop single actian d3plabaf single action d3plotag single ackion d ploEah E single _action d3plotai Documents s single ackion d 3platait1 Ej single action d3plotaj Ies single action d3plotak Computer Network File name Flaces Files of type LS DYNA Post d3plot d3drlf dunain d3plataa inl Lancel Figure 2 1 1 Select File Window 1 LOOKIN Allows the user to navigate directories when opening saving files 2 FILENAME Allows the user to specify the name of the file to open save 3 FILE TYPE Allows the user to specify the type of file to open save The available file types are displayed in the drop down list The SELECT FILE window only displays the files that match the current FILES OF TYPE extension For eta DYNAFORM users the result files to process are mainly d3plot files When displaying the result as shown in the above figure the
123. ile name Places Save as type Cancel Figure 5 7 1 Save Macro File Click the END RECORD MACRO FILE option under the TOOL menu to end the recording operation Click the RUN MACRO FILE option under the TOOL menu to run the recording operation 5 8 PART VALUE CURVE This function allows the user to plot time history curve for the maximum and minimum value in all the nodes or elements in the selected parts The function only works during contour animation The program displays a dialog window as shown in Figure 5 8 1 to prompt the user to select the desired parts Figure 5 8 2 shows a typical result history curve in part thickness animation where one is the max thickness time curve and the other is the min thickness time curve NOTE The user should select the morphed part blank as the tool parts don t have results eta Post 1 8 1 71 Chapter 5 TOOL Control Option Select hy Cursor Figure 5 8 1 Select Part Control Option alo x a BLANK THICKNESS Max AT NODE THICKNESS Min AT HO 20 3 4 6 g 1b 12 14 Time E 2 Print Clighaard Operation Figure 5 8 2 A Typical Thickness Time History Curve 5 9 NODAL VALUE CURVE This function allows the user to plot a time history curve of the result for the selected nodes as shown in Figure 5 9 1 The curve is in the new curve table window This function is only available in contour 72 eta Post 1 8 1 TOOL
124. in Figure 8 5 6 If Show Active Steps Result 15 not selected the wear result for all steps will be displayed as shown in Figure 8 5 5 Show Tool Wear History After calculating Tool Wear click this button and select the node or the element from the graphic area to view wear history curves of them When Element Result option is selected the wear history curves of the element will be displayed Import Previous Tool Wear Import Previous Tool Wear to initialize current tool elements wear value Only element result type file can be used After the import the current element result flag will be set as on Export Tool Wear Once this option is selected the Save File dialog box appears Enter the name of the wear file to be saved and click on the Save button The wear result will be saved in the file with suffix of Ist Export Worn Geometry Click on this button to export the worn geometry offset wear extent at the corresponding node position as LS DYNA file Clear Result Clear the wear result contour plots displayed on the screen Refer to Section 8 3 for a detailed description of Contour Setting Export Contour Line and List Value The wear calculation procedures and notes are given below 138 1 Read in d3plotint file 2 After reading in this file the icon 1 1 is activated 3 Click on the Tool button to select tool for wear calculation Click on the Blank button to select the blank to be used Define various wear
125. indow 79 Heure o 14 2 Calculation ditio e deir un p e eir uu qo ee eee 80 Figure oS Ext ealeulittOlko utu ete dita da utet Tne oT Puta e ee ee us 8l Figure 5 I5 I User Control Window ente eode eis eene ee aede eaa een Ue eo oo 51 Figure 5 16 1 Export Boundary Line dialog 62 Figure 5 17 1 Export Pressure Maghtbide tial iae ira or aae ia ae ae ia ee etia sedet 83 Figure 5 19 1 Unit Conversion Window iode Los de Ia qon ooa duo Hao qo Loa du osa duo Idae qo osa de 83 Figure 20 1 Model Summar oso exe exe exe p doxes m 84 Figure 642 Drawbedd Force Dist bution S aui pi RR au a aiu dus 86 Figure 6 5 1 Multiple Stage Control Window cccceeeseeeeeeeeeeeeeeeeeeeseeeeeeeeeeeeeeeeeeeeeeeeeeeeees 86 Pisure 2922 ZIGOLTAMUBIDUTE seston cds 67 Figure 6 5 3 the blank history process in whole 88 Fool MAN NOU SUR 88 Figure 6 62 Theresult of tool trave wie wile te betonte wile ile wile leis 89 Figure 6 7 1 Pamt Blank Control WinGOW saeco edel da edel dd e de dd edu idu 90 Figure 6 7 2 Texture Manager a oe eoe ee eee oae aee a 90 PPC Partite que He C Eoonnd meum ER amb 91 Figure 6 8 1 Ironing Rate Control WindOW ccccceseeeseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 02 Figure 6 11 1 Ton
126. ion Save 2 Z force Gume Name 1 farce slave 2 Contact 3 2 T farce 2 Contact 2 Zforce SOLID v Mark ROUND M Legend On Off 2 2 Mass Number of 10 V Legend Location Curve Color m Background Calor m AXIS Log X Log Y Iv Grid Modify Axis A Title Time Min 0 0 1341 Y Title hy Min j 12254 9 1 00599 00 New Value X v Unda Reset Paar s MIO Properties Figure 9 4 3 Curve Attribute control window There are many options for the user to change the attribute of the selected curve The list on the left of the curve window shows the curve names in the graph window The user should select a desired curve followed by entering a new name in the Curve Name field and then click Apply to change the name 1 ON OFF This function enables the user to turn on off the selected curve s in the graph window The user may select a curve by clicking the name in the list or select multiple curves by pressing the SHIFT or CTRL key while clicking the mouse button 2 PROPERTIES This function will display a window to present the basic properties number of points in curve Min Y and Max Y coordinates of the selected curve A typical PROPERTIES window is shown in Figure 9 4 4 eta Post 1 8 1 181 Chapter 9 182 CURVE NAME This function allows the user to change the name
127. is menu enable the user to animate the element stress strain and related results in real time The color bar located on the right side of the graphic window displays the corresponding contour values The highest contour value in the model is labeled with an asterisk and the lowest is labeled with a zero 0 as shown in Figure 8 3 1 Select Stress Strain or Displacement in Contour Operation firstly and then select Current Component to continue the operation The detailed operation process is shown as follows eta Post 1 8 1 113 Chapter 8 POSTPROCESS Stress Strain T SIGMA 5 V 1 0 m m setting All Frames T 0 020499 0 041000 1061499 Figure 8 3 1 Contour control window 8 3 1 CURRENT COMPONENT The contour animation can show STRESS STRAIN and DISPLACEMENT results The user should select the type of contour variable before the plot or animation All the components of the relevant results are included in the pull down menu of CURRENT COMPONENT The components regarding STRESS STRAIN are listed below 114 eta Post 1 8 1 POSTPROCESS Chapter 8 SIGMA XX SIGMA YY SIGMA ZZ SIGMA XY SIGMA YZ SIGMA ZX PLASTIC STN BEND MONMENT MXX BEND MONMENT MYY BEND MONMENT MXY SHEAR RES SHEAR RES QYY NORMAL RES NXX NORMAL RES NYY NORMAL RES NXY THICKNESS EPSON XX EPSON YY EPSON ZZ EPSON XY EPSON YZ EPSON ZX ENERGY MAX VONMISES eta Post 1 8 1 115 Chapter 8 POSTPROCESS MEAN
128. is parameter is used to define the radius of the circular grid The default value is calculated according to the element size 2 OFFSET This function defines the distance between landscape and portrait on the circular grid The default value is calculated according to the element size 3 COLOR This function defines the color of the circular grid The default color is white 4 DEFINE U V DIRECTION This function defines the tiling direction of circular grid on the blank The define process is the same as the one of normal U V plane definition 5 LIST VALUE 152 eta Post 1 8 1 POSTPROCESS Chapter 8 This function allows the user to select the circular grid to display the corresponding strain result It can only be activated after the paving of circular grid The result of the selected circular grid 15 Y d Am JA oN 4 T fon 2 2 ez d BEDO A i See a 2 j i OX 5 ENA NOOO Oe e X M y eee 2 X ai c D Y aa 6 c 4 1 joots3tz 0184518 0 830287 0 008449 0 421886 0 083111 ETA POST 1 816295 Figure 8 11 2 An example for Circular Grid 8 12 SKID MARK This function is used to display any possible skid mark left on the blank as shown in Figure 8 12 1 Please refer to Section 8 1 and 8 2 for functions of other buttons eta Post 1 8 1 153 Chapter 8 POSTPROCESS 154 Skidhd ark Operation Trace Between
129. is plotted out by the section line Figure 5 1 12 shows a typical display of the PARTIAL MODEL option eta Post 1 8 1 61 Chapter 5 TOOL UNTITLED STEP 16 TIME 0 011050 1 5 01 COMPONENT Major principal strain middle layer 1 4E 01 Em 1 4 01 1 3E 01 1 2E 01 1 1 01 1 1 01 9 8E 02 9 0E 02 m S 7 5E 02 6 8E 02 6 0E 02 5 3 02 4 5 02 3 8 02 3 0 02 2 3 02 1 5E 02 7 6E 03 5 2E 05 7 A ETA POST Figure 5 1 11 An Example for PARTIAL MODEL display PARTIAL MODEL WITH WIREFRAME Select this option and then the user select one partial model which is plotted out by the section line the other partial model will display wireframe mode Figure 5 14 shows a typical display of the shows a typical display of the PARTIAL MODEL WITH WIREFRAME option UNTITLED STEP 16 TIME 0 011050 COMPONENT Major principal strain 1 7E 01 2 m 1 5E 01 1 5E 01 1 4E 01 1 3E 01 1 2E 01 1 1E 01 1 0E 01 9 4E 02 8 6E 02 7 7E 02 6 9E 02 6 0E 02 5 1E 02 4 3E 02 3 4E 02 2 6E 02 1 7E 02 FEED oF E T eo m 5 2E 05 79 7 pa ETA POST Figure 5 1 12 An Example for PARTIAL MODEL WITH WIREFRAME display 5 1 13 SECTION LINE POSITION This function provides two options for the user to decide the position of the section plane fixed or moved 62 eta Post 1 8 1 TOOL Chapte
130. l automatically include FLC curve in output idx file Postprocessor will obtain FLC curve data from idx file by default The type of FLC curve in idx file 15 engineering strain If the FLC curve used by the user is in true strain format when inputting in pre processor the strain transforms to engineering strain format and then input to pre processor or adopts the subsequent File method to define If there is no FLC curve in the idx file the user will be prompted with this message and FLD will be displayed with the default FLC parameters Refer to APPENDIX A for detailed information about INDEX idx file format n r t If FLC curve is not defined in pre processor then the FLC From index file option mentioned above is not activated The program obtains n r t parameters from idx file by default and then gets the FLC curve approximately according to Keeler s formula If the user does not assign idx file or have idx file for example the user opens result file calculated by earlier DY NAFORM version the program adopts a group of default n t parameters to calculate FLC curve At this time the user should adjust n r t manually to obtain the proper FLD curve eta Post 1 8 1 141 Chapter 8 POSTPROCESS Keeler s formulas used in Post are FLD n 23 3 14 134 f 21 0 0 t lt 2 5 mm FLD n 20 0 20 669 1 938 t t 21 0 2 54 lt t lt 5 33mm FLD 75 125 n 21 0 12533mm The shape of FLC is d
131. l highlight display die radius and at the same time display the radius value in DIE RADIUS DEFINE PUNCH RADIUS This function is used to calculate punch radius After the user selects three points in punch by the mouse the program will highlight display punch radius and at the same time display the radius value in PUNCH RADIUS After defining the radius of die and punch the user can input original blank thickness the program will calculate ironing rate automatically and display the value 6 9 IMPORT COLORBAR SETTING This function enables the user to import the colorbar setting file 92 eta Post 1 8 1 APPLICATION Chapter 6 6 10 EXPORT COLORBAR SETTING This function enables the user to save the colorbar setting in config file format 6 11 TONNAGE PREDICTION This function provides options to plot tool force vs time curve and force vs displacement from home position curve which helps the user to analyze and predicate the tonnage The control window is illustrated in Figure 6 11 1 The function loads the result file of LS DYNA analysis automatically RCFORC and RBDOUT The steps are as follows 1 Select RCFORC in the Case List by mouse at the same time relevant RBDOUT is selected if toggle on Linkage option And all relevant tools and drawbeads will be listed in the Tool List 2 Select any tool in the Tool List the tool will be highlighted in the screen if toggle on Highlight Part option The user can make the mu
132. lso enter any view name in the VIEW NAME field and click OK to save the current view or click CANCEL to abort the save operation Input Name Figure 4 10 2 View Name dialog box 2 DELETE Delete the previously saved view Select a VIEW NAME in the view list and then click DELETE 3 IMPORT VIEW Import the existing view file to the view list 4 EXPORT VIEW Export the saved view in viw file format Select a view name from the view list and click the EXPORT VIEW button to save this view in viw file format 5 RECALL VIEW Recall the previously saved view and set it as the current view Select a VIEW NAME in the view list and then click RECALL The program will display the current model according to the saved view 6 EXIT eta Post 1 8 1 49 Chapter 4 EDIT MENU Close the SAVE VIEW dialog box and exit the function 4 11 BACKGROUND COLOR This function allows the user to select a color from the color palette as the background color of the graphic display window The background color is activated by clicking on the Background option in the Display Option menu at the lower right corner of the screen Once the function is selected the program displays a dialog window to define background color The user may click on the color box for top and bottom color of the screen Once the color box is clicked the program will display a color palette as shown in Figure 4 11 1 Background Color Top Color Bottom Color MEMINI
133. lti selection by Ctrl and the left key 3 Select curve type force vs time curve or force vs displacement from home position curve 4 Select Force Direction option 5 Define Unit 6 Select the Plot button to generate the curve NOTE the index file RCFORC file and RBDOUT file have existed in the directory of the model result file RCFORC file and RBDOUT file will be loaded automatically eta Post 1 8 1 93 Chapter 6 APPLICATION Tonnage Prediction Load Index File Case List Linkage single actian rcfarc single actian rbdaut Tool List M Highlight Part Drawbead Time Displacement Time Displacement Force Direction Total Sy 7 Unit Force Hong TON 7 c MM Time SEC Flat Mew Graph Exit Figure 6 11 1 Tonnage Prediction control window LOAD INDEX FILE This function is used to load idx file The user can run eta post and use the function to straight read RCFORC and RBDOUT In addition if the user opens multistage result file the user must read RCFORC and RBDOUT of all stages by the function CASE LIST This function is used to list RCFORC and RBDOUT LINKAGE This option is used to keep the same stage of RCFORC and RBDOUT TOOL LIST This function is used to list all tools and drawbeads of index file and supports multi selection e HIGHLIGHT PART 94 eta Post 1 8 1 APPLICATION Chapter 6 This option is u
134. material color to the default setting 4 7 COLOR MAP Eta Post uses 30 different colors to distinguish parts in the model This function enables the user to modify the default setting for any part color The program displays the COLOR MAP control window as shown in Figure 4 7 1 40 eta Post 1 8 1 EDIT MENU Chapter 4 Color scheme otyle User Defined Save Reset Figure 4 7 1 Color Map Control window The user may select any color to modify by clicking on a color block in the color palette The program will display a change part color control window as shown in Figure 4 7 2 Fart color Figure 4 7 2 Part Color Control window The procedure for changing Part Color is the same as in Change Material Color that has been described in section 4 7 1 COLOR SCHEME 30 default colors This function is used to switch color scheme The user may select color scheme by clicking the pull down menu below There are three types of color scheme Style User Defined Style ETA and Style LSTC Default style is Style User Defined 2 SAVE This function is used to save the Color Scheme After clicking a color block and selecting the desired color in the displayed color control window the user can click the SAVE button to save the altered color to CONFIG file eta Post 1 8 1 41 Chapter 4 EDIT MENU 4 8 PART ATTRIBUTES The functions in PART ATTRIBUTES control window allow the user to modify the display characteristics for
135. may click left button of mouse to specify a suitable position as the rotate center and move the cursor up and down to rotate the model 8 Fl SCREEN Y ROTATION 10 The displayed model will dynamically rotate about the screen Y axis when the cursor is moved up or down Default rotate center is the model center If Define Rotate Center is open user may define rotate center After clicking the SY icon the user may click the left mouse button to specify a suitable position as the rotate center and move the cursor up and down to rotate the model SCREEN Z ROTATION The displayed model will dynamically rotate about the screen Z axis when the cursor is moved up or down Default rotate center is the model center If Define Rotate Center is open the user may define rotate center After clicking the SZ icon the user may click the left mouse button to specify a suitable position as the rotate center and move the cursor up and down to rotate the model A L FREE ROTATION This function is a combination of Screen X and Screen Y rotation Moving the mouse up down manipulates Screen X rotation Moving the mouse left right manipulates Screen Y rotation Moving the mouse diagonally combines the rotations of both directions Click the left mouse button to stop the rotation The user may activate this function by pressing Control and the left mouse button while moving the mouse Release Ctrl after this function is activated Release the left m
136. n The dialogue box shown in Figure 5 6 1 prompts the user to select node A trace is a line or track that shows the path that the node takes during the motion A typical Node Trace is shown in Figure 5 6 2 eta Post 1 8 1 69 TOOL Chapter 5 i el i o ce C Select Node Control Window Figure 5 6 1 TEST 0 010910 STEP 16 TIME T an Tan E ETE MU E rar TD cir FU a oro Se ca T iu re re n uo fees F ie E DU Er E i Pr Fen iam ri Pana TERETE ax Hi DOE Sa LITT oe HT Ht n F H Ead 7 4 Ww vi WM M i i Mit it Ms EITA POST Figure 5 6 2 Node Trace Click CLEAR NODE TRACE from the TOOL Pull down menu to remove all of the currently defined traces eta Post 1 8 1 70 TOOL Chapter 5 5 7 START RECORD MACRO FILE This function allows the user to record the operation procedures in PostProcess Click the START RECORD MACRO FILE button to display a Select File dialog box illustrated in Figure 5 7 1 After entering the file name click the SAVE button to start recording The recorded file will be saved in mcf type Save In B rund t Documents acuments Computer 22 Network F
137. n select Figure 3 5 2 Select Print Area Dialogue Box eta Post 1 8 1 FILE MANAGER Chapter 3 3 5 5 NUMBER OF COPIES This function allows the user to print multiple copies This option is disabled when PRINT TO FILE option is toggled on 3 5 6 PRINT This function will send the model to a selected printer or prompt the user to enter a file name to save to the file 3 5 7 CANCEL This function allows the user to exit the function and rejects any previous selections 3 6 PRINT TO FILE This function is used to save the content in the display area as graphic file Its control interface is shown in Figure 3 6 1 Documents My Computer My Metwork File name Places cr EN ms Save as type JPEG ipd E Cancel Figure 3 6 1 Print to File Window 3 7 RELOAD This function is used to reload opened file When running the case by the solver the user can reload the result file to scan the result again and again eta Post 1 8 1 33 Chapter 3 FILE MANAGER 3 8 SETTING The setting dialog is a GUI for the user to edit the configuration file etapost config as illustrated in Figure 3 8 1 You will have to restart the system now for the above changes to be effective eta Post 1 8 1 EO ETA_Post Configure Keyword BACKGROUND SETTING WINDOW PARAMETER PRODUCT PARAMETER OFF LIST VALUE SETTING Debug OFF Define Rotate C
138. n this menu allow the user to define section cut mirror analysis result define active window trace node and define node curve etc as shown in Figure 5 1 Tool section Cut Constraint Motion Mirrar Result by 2 Face Reflection Define Active Window Clear Active Window Define Mode Trace Clear Mode Trace Start Record Macro File End Record Macra File Run Macro File Fart Value Curve Modal value Curve Element Value Curve Modal Displacement Curve Distance Curve Screen Curve Operation Fart Distante Fart Interference Check Export Boundary Line Export Pressure Magnitude Max Pressure Over Time Unit Conversion Model Summary Figure 5 1 Tool Menu A detailed description of each submenu and the corresponding function is given in the following section 5 1 SECTION CUT This function is used to define a section plane that intersects with the model and display the section line and the result on the section The SECTION CUT control window is shown in Figure 5 1 1 DEFINE CUT PLANE is the only function available when the SECTION CUT function starts eta Post 1 8 1 51 Chapter 5 TOOL Figure 5 1 1 Section Cut Operation 5 1 1 DEFINE CUT PLANE The section plane is the U V plane of the user defined local coordinate system The local coordinate system may be defined by selecting one two or three nodes from the model The program displays a Control Option window as shown in Figure 5 1 2 The program also displays the model wit
139. nage Prediction control window 94 Figure 6 11 2 Curve window of Tonnage predication 95 Figure 6 1220 Curvature dialog DOX dup uie ro 977 Figure 6 12 2 Element dihedral angle definttOn oe e ee Roe deities ene ane ente 977 Ficus 9 12 5 Stepne remeni MOC teo det ob eto bet bo bet botas 08 Figure 6 13 1 Wrinkling Amplifier control window eese 99 Figure 6 13 2 The Result of Wrinkling 99 Figure 6 15 1 3 Point Gauge Check control window 100 Figure 0 15 2 Select Element optio eode oe a dea a ee eo ete ae deua An 101 6 15 35 Denne aud dialos DOK adio ERIS SEEN ARE Ee 102 Figure 7 6 1 Parts displayed in different colors in normal 104 Figure 7 9 1 Typical display with Element Orientation option 105 7 19 1 Frame Desc ON 06 8 107 Figure 520 1 Continuous ColorD3E act etel a Utt ae etn a 107 Ligure 7 20 2 Default Colorbar REB RI een TD Rea eee TD ea eR UD 107 eta Post 1 8 1 IX TABLE OF FIGURE Figure 7 21 1 Figure 7 22 1 Figure 8 2 1 Figure 8 2 2 Figure 8 2 3 Figure 8 2 4 Figure 8 2 5 Figure 8 3 1 Figure 8 3 2 Figure 8 3 3 Figure 8 3 4 Figure 8 3 5 Figure 8 3 6 Figure 8 3 7 Figure 8 3 8 Figure 8 3 9 Fig
140. ndary Lines Figure 5 16 1 Export Boundary Line dialog window 5 17 EXPORT PRESSURE MAGNITUDE This function allows the user to export the pressure magnitude of the designated element to file as shown in Figure 5 17 1 Click Select Tool cells and then click Export Pressure Magnitude Set the file path and name in the subsequent dialogue box the saved file format 1s prs 82 eta Post 1 8 1 TOOL Chapter 5 Export Pressure Magnitude Select Tool Cells Export Pressure Magnitude Figure 5 17 1 Export Pressure Magnitude 5 18 MAX PRESSURE OVER TIME This function is used to find the highest interface pressure of each element during the whole forming time and plot as contour map Open the D3PLOTINT file of multiple stages and click gt PRESSURE OVER TIME to display the control window Then select the Execute button to calculate automatically the highest interface pressure of each element during the whole forming time and plot as contour map Please refer to section 8 3 for a detailed description of the contour setting 5 19 UNIT CONVERSION This function enables the user to switch units converting the current unit system to another one Figure 5 19 1 shows the Unit Conversion window Unit Conversion n Original MSEC MSEC WKS SEC N FT SLUG SEC LB IH EB SECE Z I
141. nit inch or mm 3 5 3 ORIENTATION This function defines the paper orientation as landscape or portrait 3 5 4 OPTIONS These options are for defining printer output and layout on the paper 32 PRINT BACKGROUND If this function is toggled on the background color of the screen will be included in the print out If this function is toggled off there will be no background color on the print out BINDING BOX This function draws a line frame around the picture s border PRINT STAMP TIME This function prints the current time at the lower right corner of the picture PRINT FILE NAME This function prints the file name at the lower left corner of the picture PRINT ETA LOGO This function prints eta Post at the lower right corner of the picture PRINT GRAPHIC DESCRIPTION If this function is toggled on the filed below the switch is enabled to use Users can enter a string of characters to describe the current image This string of characters will be printed on the print out KEEP BACKGROUND WHITE When this option is toggled on set the screen background with white color before print to file or printer PRINT AREA When opening this option the Define Area button beside it 1s activated Click Define Area button to open the following dialogue box then click the left button in graphic area and drag out an area in as defined graphic output area Then click Exit to complete definition Control Option Select by Vvindaw Clea
142. ns at any time during the session The icon bar and menu bar functions behave in the same manner as the preprocessing functions eta Post breaks the screen into six distinct regions The regions are used to provide input or display messages to the user The six regions are illustrated and described in Figure 1 1 1 ETA Post Processor 1 8 1 F twang GM Project gm_benchmark_files fender_360ng simulation_result d3plot File Edit Tool Option Help Menu bar e l ae D Tool Bar alOloielels Deform Operation Undeform Scale Factor 1 0 Frames All Frames V Reset b il oO o K 4 Ib Frame Number 1 Frames Second Control Window ETA POST PLEASE WAIT E Shade Iv Smooth Shade Material Color COMMAND COMPLETED x READ COLORBAR CONFIGURATION FILE Message Window Fill Color ElementEdge Shrink Display Options PLEASE WAIT LI LI SONA CONPITED zi Hidden Surface Plate Normal Background Figure 1 1 1 eta Post interface window l GRAPHIC DISPLAY WINDOW Models and graphs are displayed in this window 2 MENU BAR Commands and options are displayed in this area 3 TOOL BAR Provides the user easy access to the commonly used functions of the program 4 CONTROL WINDOW AREA eta Post 1 8 1 3 Chapter 1 STRUCTURAL OVERVIEW Once the user selects a command from the MENU BAR
143. of the selected curve CURVE STYLE Properties Ma of Points 101 Min Y 1 973080 005 Max Y 4 69460 004 A 000000 0 0 4 23959920 004 5554 0 0 04 1 3156 0E 003 1 r54030E 003 2 193660E 003 2 692520E 005 3 07 1400E 005 3 9 70350E 005 3 9490 4507 r5SuE UD3 4 a25S5UE UD3 2 zbBS34dE UD3 5 04130 009 Hd Figure 9 4 4 Curve Properties window v 000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 000000 000 This function allows user to change style of selected curve There are four styles available SOLID DASH DOT DASH DOT The default style is SOLID and the user can press the v button on the right of the text box to select a desired type Click APPLY to update the graph window MARK This function allows the user to change the type of curve mark There are six types of curve mark available ROUND eta Post 1 8 1 GRAPH Chapter 9 SQUARE UP TRIANGULAR DOWN TRIANGULAR DIAMOND NO MARK The user can press the v button on the right of the text box to select a desired type Click APPLY to update the graph window 6 NUMBER
144. olor menu in EDIT menu to adjust background color 1 11 PRIORITY OF FUNCTIONS The functions in eta Post are prioritized Functions in Display Options can be accessed to at any time The functions in Edit and Tool menus have the highest priority If any of these functions 15 started all other functions in eta POST are disabled Control Window has the lowest priority The user is able to access other functions when Control Window is opened Only functions in Edit menu Tool menu and Display Option are allowed to be used during animation 1 12 CONTROL WINDOW AND CONTROL OPTION eta Post incorporates two types of windows FUNCTION DIALOG WINDOW and CONTROL WINDOW At the bottom of the FUNCTION DIALOG WINDOW there are buttons to execute cancel reset the data or close the window The functions of these buttons are listed below APPLY Execute the current function CANCEL Cancel the current operation EXIT Exit the current window OK Accept the data in the dialog box and go to the next step UNDO Cancel the last operation REDO Allows user to restore to the operation before UNDO RESET Restores the original setting REJECT Reject the previous selection 1 13 FILE FORMAT eta Post supports the file format specified with or without suffixes The corresponding file names are listed below DYNA result files d3plot d3drif dynein d3plotaa d3plotint DYNA model files dyn DYNA result file of eigenvalue analysis d3eigv eta P
145. on Curent Component gt THICKNESS Y Increment undefarm Element Result Contour Setting Export Contour Line Export Contour Value List Value Frames Single Frame T Reset 0 000000 0 002400 0 004800 0 007199 0 009599 From 1 13 Incr 1 H d Frame Humber Frames Second 10 5 Figure 8 7 1 Thickness Control Window The user may select THICKNESS THICKNESS STRAIN THINNING CURRENT or THINNING from the drop down menu to animate the thickness thickness strain thinning current or thinning of the blank For thickness contour the program automatically switches to REVERSE CONTOUR BAR mode for plotting Red represents thinning and blue represents thickness NOTE The user can define the thickness range or thinning range according to the requirements The area over the defined range is in dark color A simple plot of thickness and thinning contours is shown in Figure 8 7 2 and Figure 8 7 3 respectively 146 eta Post 1 8 1 POSTPROCESS Chapter 8 FORMING UNTITLED STEP 20 TIME 0 100301 COMPONENT Thickness 0 517644 0 542232 0 566820 0 591407 0 615995 0 640583 0 665170 0 689758 0 714346 0 738933 0 763521 Y ETA POST Figure 8 7 2 Thickness Contour FORMING UNTITLED STEP 20 TIME 0 100301 COMPONENT Thinning 25 000000 22 800001 20 600000 18 400000 16 200001 14 000000 11 800000 9 600000 7 400000 5 200000 3 000000 Y ETA POST
146. on of ELEMENT ORIENTATION is shown in Figure 7 9 1 Figure 7 9 1 Typical display with Element Orientation option 7 10 ACTIVE CONTOUR RANGE If this option 1s selected the contour range in the color bar will change according to the displayed part range in the graphic area If this option is not selected the contour range is always the whole model range even if only a portion of parts are displayed in the graphic area 7 11 OVERALL CONTOUR RANGE If this option is selected the contour range in the color bar is the range for all frames If this option 1s not selected the contour range is just the range of the current frame eta Post 1 8 1 105 Chapter 7 OPTION 7 12 DEFINE ROTATE CENTER If this option is selected the user can customize the rotate center If this option is not selected the program will automatically define the rotate center 7 13 DISPLAY GRAPH ON SCREEN This option is used to toggle on off time history curve display on the screen 7 14 APPLY VPG LAYOUT eat POST supports several preprocessing software such as DYNAFORM VPG etc The default layout is DYNAFORM interface When selecting this option eta POST interface layout adopts the interface layout for VPG post processing 7 15 APPLY SECOND RENDER When some high end graphic cards cannot work properly this option is required to apply the second shading The general symptom is the menu and highlight on the screen are not updated correctly Under ordinary
147. ontour Setting List alue Hormal Wiem Figure 5 1 9 Section Comparison DEFINE SECTION 1 amp 2 Define two sections to be compared DEFINE REFERENCE POINTS Select reference points on the two sections AUTO FIT Connect the two sections automatically based on the reference points MOVE Activate sections to be offset or rotated X Y Inc Incremental X and Y displacement of the section if the Arrow button in the GUI window 15 clicked ANGLE Inc Incremental angle of rotation of the section if the Rotate button in the GUI window 15 clicked SHOW DEVIATION Show the Deviation Contour Plot between two sections eta Post 1 8 1 59 Chapter 5 TOOL 12 007 151 11 149497 10 291843 9 134190 8 576536 7 718883 6 861229 6 003575 5 145922 4 288268 3 430614 2 572961 1 715307 0 857654 0 000000 Figure 5 1 10 Deviation Contour Plot between two sections NORMAL VIEW View the section from the normal direction 5 1 10 MOVE SECTION BY MOUSE This function allows the user to change the section cut location by moving the mouse The section cut can translate along the local W axis or rotate about the local W axis Alternatively it can also translate along the user defined curve 60 TRANSLATE Click the MOVE SECTION BY MOUSE button and eta Post displays a Control Window for the user to define the reference point Click DEFINE REFERENCE POINT to select a node in the current section as the reference node Or click PRE
148. ors in RGB Mode CONTOUR RANGE The user can define the contour range by entering the maximum and minimum values If the entered value is lower than the maximum the color of the contour above the range is displayed in darker color if the entered value is higher than the minimum value the color of the contour below the range is displayed in darker color Once the maximum and minimum values are entered the user can define the color for them The user can change the color by clicking the CONTOUR BAR OPTION window Click the APPLY button to update the contour according to the new contour range The program will automatically save the contour range set by the user When the user opens this model again the program will automatically open the contour range of COMPONENT set by the user and search and load colorbar config file in the order of model dir gt system home dir install dir LOGARITHMIC This function enables the user to control the color bar of contour plot by logarithmic mode After the user select the option the values of the color bar will be displayed by logarithm as shown in Figure 8 3 8 eta Post 1 8 1 POSTPROCESS Chapter 8 FATIGUE 0 0E 00 1 0E 01 1 0E 02 1 0E 03 1 0E 04 1 0E 05 1 0E 06 1 0 07 1 0 08 1 0 09 i je ETA POST Figure 8 3 8 Logarithmic Contour Plot 5 ADJUST CONTOUR BAR This function enables the user to adjust the color bar of contour plot The user can select any point on the axis of t
149. ost 1 8 1 13 Chapter 1 STRUCTURAL OVERVIEW NASTRAN result files pch op2 DYNA result files d3mode NASTRAN model files nas dat ETA 3DPlayer 3D display file format e3d ETA Multiple stage files idx DPM FIC result files dpm fic NISA2 result files dat FAS result files fas DYNAFORM VPG FEMB line data files lin IGES data files 1gs 1ges ETA light property files lgt ETA part attributes files att ETA user view files viw ETA macro files mcf ETA pressure magnitude files prs ETA color bar setting config ETA tool wear Ist Where lin 1gs iges lgt viw mcf prs config and Ist files are loaded by import The others can be opened directly eta Post can open DYNA result files directly After the NASTRAN result file is loaded the program will require loading the corresponding NASTRAN model file The user may import LINE DATA DYNA or NASTRAN model files 1 14 CONFIGURATION FILE The etapost config file or initialization file manages the default setting of eta Post Their default path is located in the user directory under Windows For example C Documents and Settings Andy Application Data ETA PostProcessor1 8 1 Windows XP C Users Andy AppData Roaming ET A PostProcessor1 8 1 Windows 7 The configuration file 15 located in the user root directory under UNIX Linux This file can be edited via the text editor The normal content of the e
150. ouse button to exit the function Default rotation center is the model center If Define Rotate Center is selected the user may define the rotation center After clicking the icon the user may click the left mouse button to specify a suitable position as the rotate center and move the cursor up and down to rotate the model 11 This command enables the user to translate the model the screen by following the movement of the cursor If the cursor is moved off the screen the cursor reappears at the center of the screen Click the left mouse button to stop the pan operation The user may activate this function by pressing Control and the Middle mouse button while moving the mouse Release Ctrl after this function is activated Release the mouse button to exit the function 12 CURSOR ZOOM The user picks a point about which to zoom The model is centered about this point and the user may move the cursor up to zoom in or down to zoom out The user may activate this function by pressing Control and the right mouse button while moving the mouse Release Ctrl after this function 15 activated Release the right mouse button to exit the function eta Post 1 8 1 STRUCTURAL OVERVIEW Chapter 1 NOTE If the cursor is moved off the screen in functions ROTATE PAN or CURSOR ZOOM the cursor 13 14 15 16 17 18 19 20 21 re appears at the diagonal of window automatically to continue the operation
151. parameters and material hardness parameters Define Contact Tol if necessary Define No of Strokes c S um Select Show Aux pressure or velocity then clicking on any Frame the pressure or velocity for this step will be displayed 8 Then click on the Calculate Tool Wear button to calculate and display the wear result If View Active Steps Result is selected the result for the activated Frame will be displayed If it is not selected the result for all the Frames will be displayed eta Post 1 8 1 POSTPROCESS Chapter 8 SPECIAL ICONS FOR eta DYNAFORM These icons are specially designed for eta DYNAFORM post processing If the user opens a simulation file of DYNAFORM these icons will be displayed at the top of the CONTROL WINDOW This allows the user to quickly select frequently used functions by a simple mouse click 8 6 FLD This function is used to evaluate the formability of the blank safety and failure regions The X and Y coordinates for every point in the diagram represent the maximum and minimum principal strains of each element The options in this menu are shown in Figure 8 6 1 The Enable Default Parameter option is added in etapost config file If this option is off and there is no FLD curve in index file a warning message will be prompted and the FLD function will be unavailable eta Post 1 8 1 139 Chapter 8 POSTPROCESS M Element Result FLD Curve Option FLD Reversed Mapping Export VRML File
152. pt the element mode of the last selection Select Element Elementi Select by Cursor Select by Window Select by Polygon Select by Freehand Select by Line Select by Displayed Reject Last Selected Reda Abort Selected Exclude All in Region Spread Figure 8 15 2 Select Elements Option Click any single frame to display defect contour as shown in Figure 8 15 4 The contour color is in accordance with the detected defect depth The red color shows the area on the mesh with the highest defect level The user can define different defect levels for estimation Element Result will perform calculation according to the element result or node result Compensate Initial Def This option is used to compensate the initial defects from the initial part shape If this option is selected the initial defect will be subtracted from the displayed defect result Otherwise the current defect will be used for calculation Show Test Region This function is used to display the element test result of the selected region By Element Displays the test result based on elements By Region Boundary Displays the test result based on the region boundary Export Contour Line This option is used to export the contour line of the current frame eta Post 1 8 1 161 Chapter 8 POSTPROCESS HIGH DEFECT 0 1500 to 0 4000 0 0100 to 0 1500 Bi H7 0 0010 to 0 0100 Co apimi 111 LLL T
153. pter 9 GRAPH 9 2 2 BOUNDARY NODAL FORCES BNDOUT The user can plot time history curve for boundary nodal force with bndout file The following data are included XFORCE YFORCE ZFORCE ENERGY 9 2 3 DEFORMED GEOMETRY DEFGEO The user can plot the deformed geometry with defgeo file 9 2 4 DISCRETE ELEMENTS DEFORC The user can plot the time history curve for discrete element with deforc file The following data included X FORCE MOMENT X FORCE MOMENT X FORCE MOMENT RESULTANT FORCE MOMENT 9 2 5 ELEMENT DATA ELOUT The user can plot element data curve with elout file 9 2 6 GEOMETRIES CONTACT ENTITIES GCEOUT The user can plot contact data for geometries with gceout file The following data are included XFORCE YFORCE ZFORCE FORCE MAGNITUDE X MOMENT Y MOMENT 170 eta Post 1 8 1 GRAPH Chapter 9 Z MOMENT MOMENT MAGNITUDE 9 2 7 GLOBAL DATA GLSTAT The user can plot the time history curve for global statistics with glstat file The following data included TIME STEP TOTAL ENERGY TOTAL INITIAL ENERGY ENERGY RATIO KINETIC ENERGY ERODED KINETIC ENERGY INTERNAL ENERGY ERODED INTERNAL ENERGY SPRING amp DAMPER EMERGY HOURGLASS ENERGY SYSTEM DAMPING ENERGY SLIDING INTERFACE ENERGY EXTERNAL WORK TIME PER ZONE CYCLE NUMBER OF SHELL ELEMENT NUMBER OF CYCLE GLOBAL X VELOCITY GLOBAL Y VELOCITY GLOBAL Z VELOCITY 9 2 8 JOINT FORCE FILE JNTFOR
154. r 5 1 FIXED If the user selects this option the section cut plane is fixed The section line will be made when the model intersects with the fixed section cut plane in each time step Due to the relative movement between the model and the fixed section cut plane the shape of the section line varies along with the model movement Therefore the section line varies in different time steps 2 MOVED If the user selects this option the section cut plane is moved with the model The section cut plane always intersects with the same elements in the model in different time steps This will assure that the section line is always cut from the same elements during the animation 5 1 14 SAVE SECTION After defining the section cut plane the user can click SAVE button to save the current defined section as sec file 5 1 15 RECALL SECTION Click RECALL button to load the saved section file to the current model The existing section in current model will be replaced 5 2 CONSTRAINT MOTION This function enables the user to define a reference node for motion The user may select any node in the model as the reference node by clicking the SELECT REFERENCE NODE button The user may also constrain any or all translation degree of freedom X Y and Z Figure 5 2 1 shows the dialog window of the Constraint Motion Control Option Constrain Axis Constrain Axis Constrain Axis Figure 5 2 1 Constraint Motion Dialog Window The refe
155. r selects a point on a curve the Modify Y button is pitched on The user can click any location to modify Y value by the mouse and click the Modify Y button again to exit the operation 9 4 5 OPERATION The function allows the user to operate on the selected curve There are 23 types of operations which are grouped into two categories curve data operations such as Integral Differential Add Sum etc and curve object operations such as Copy Delete and Paste etc One or more curves must be selected before selecting the curve operation function Click OPERATION to display the control window as shown in Figure 9 4 6 lt gt Lurve Window 1 1 BLANK 10_die force Master d i b 14 Time E 3 Print Clipboard Attribute Operation SAVE 2 1 BLANKA O_die 2 force Master Curve Option aax r 8x2 es Log Ln rrrnisinsd sw Filter Average Select Computation Modify Y Axis dojvspzdz4 Resulting Curve Paste V Delete Export v Undo Clear New Graph Exit Figure 9 4 6 Curve Operation Dialog box eta Post 1 8 1 185 Chapter 9 GRAPH All the curve names in the current graphic window are listed in the curve list which is on the left of the Operation window A unique curve number is assigned to each curve The curve number is usually the combination of a letter and two digit number The user may select a curve by clicking the name in the
156. re 8 14 1 Figure 8 14 2 Figure 8 15 1 Figure 8 15 2 Figure 8 15 3 Figure 8 15 4 Figure 8 16 1 Figure 8 16 2 Figure 8 17 1 Figure 8 17 2 Figure 9 1 1 Figure 9 2 1 Figure 9 3 1 Figure 9 3 2 Figure 9 4 1 Figure 9 4 2 Figure 9 4 3 eta Post 1 8 1 TABLE OF FIGURE An Example of PED Analysts 143 FED Window Parameter Edit ER RU ER RIO ER 144 Stm Path ecce oa e ebbe but 145 isi sitios tues sana sober E 145 Thickness Control W id OW 5 9 2 1951899 I SIUE CO qo e 146 Thickness C e eh ea 147 147 Major 148 Strain In Plane Control Window eese 149 DI CACC me ce tana 150 Select Part Controb ot a aite 151 Distance between Blank and cites dao pi dana DD Gua Dd dmt 151 Circular Grid Contro WIBQOW iii eee toes reta eo P tust ta Peta P aT TR 152 Arn example for Circular Grid esient deterior reed ttes 153 Skid Mark 154 An example or Skid SEP Gnd od P PURSE 155 Select Line Control Option ordenar
157. reas The control window of this function is shown in Figure 8 15 1 stoning Operation Min Elem Size scan Inc 0 5000 Min Size stone Orientation IX stone Side l Element Result Compensate Initial Def Iv Show Test Region By Region Boundary Select Elems List Value Export Contour Line Figure 8 15 1 Defect Detection DEFECT A B C and D are the criteria for the surface defect STONE LENGTH is the length of stone used for testing SCAN INCREMENT is used to control the moving step of stone STONE ORIENTATION defines the orientation of stone The stone movement is normal to the stone orientation on the part surface Click the pull down menu on the right side of Stone Orientation to select option X default Y and XY detect the orientations of X and Y simultaneously 160 eta Post 1 8 1 POSTPROCESS Chapter 8 1 The user should click SELECT ELEMENTS to select elements the part for processing The processing time increases exponentially as the number of selected elements increases It is recommended to use the Face Reflection function to identify the possible detect areas before using this function 2 The Select Elements window is shown in Figure 8 15 2 3 After the desired elements are selected click Exit to exit the function 4 FRAMES selection will be activated In Defect Detection the initial mode for element selection 1s freehand When the element 1s selected again the program will ado
158. rence node must remain stationary in the constraint direction The rest of the model will be transformed according to the reference node eta Post 1 8 1 63 Chapter 5 TOOL Control Option Constrain x Axis Constrain Y Axis gt Constrain z Axis Figure 5 2 2 Constraint Motion Dialog Window NOTE After the selection of constraint axis the program will label an asterisk as shown in Figure 5 2 2 When Show Reference Node is clicked the program will also label an asterisk The program labels the reference node with a circle during the motion 5 3 MIRROR RESULT BY XYZ This function allows the user to define a mirror plane to mirror the analysis result The mirror plane can be the XY PLANE YZ PLANE or ZX PLANE of the user defined global coordinate system or the local coordinate system as shown in Figure 5 3 1 Control Option Define Local CS Mirror Result By ey Plane Mirror Result By 1 7 Plane Mirror Result By zx Flane Clean Mirror Result Figure 5 3 1 Mirror Result Control Option Window Figure 5 3 2 shows an example of mapping a quarter of the model After selecting MIRROR RESULT BY YZ PLANE the program maps the result as shown in Figure 5 3 3 Only a half or a quarter of the model is needed when doing the calculation and analysis which can greatly reduce time During the postprocessing analysis the whole model can be displayed for better visual effect 64 eta Post 1 8 1 TOOL Chapter 5 DEEP DRAWPING STEP2
159. s Transparency Multiple Stage Contral case 10 Curent Case Tool DIE On Tool BINDER1 On Tool PUNCH41 casezt 30 Tool PUNCH2 Tool PAB On Toeal CAMZ cases Tool Attribute Transparency Y Time Interval Normal Shaw Tools Wie Gains Transparency Honoooconeaoecnacaoaensconasaoeonsosooeao Hn Contour Exit Figure 6 5 2 Tool Attribute TIME INTERVAL This function enables the user to control the time interval among the stages e SHOW TOOLS This function enables the user to control the display model of the tool part in the whole stage If the user selects the All option the tool parts of the whole stage will be displayed If the user selects Current option the list of multiple stage control will be invalid and the tool parts of the current stage are only displayed If the user selects Current option the tool part display of the whole stage is the cumulated process e SHOW BLANK HISTORY This function can display the blank history process in the whole stage illustrated in Figure 6 5 3 eta Post 1 8 1 87 Chapter 6 APPLICATION UNTITLED SPRINGBACK STAGE 4 LOCAL STEP 1 STEP37 TIME 0 022649 COMPONENT Thickness Figure 6 5 3 the blank history process in the whole stage 6 6 TOOL TRAVEL This function helps the user to calculate tool travel and display real time tool movement and home in the process of animation simulation The
160. s function is used to show the drawbead force of the constant drawbead and variable drawbead Figure 6 4 1 shows the Drawbead Force Distribution eta Post 1 8 1 85 Chapter 6 APPLICATION Figure 6 4 1 Drawbead Force Distribution 6 5 MULTIPLE STAGE CONTROL This function is used to control the display of tool part in multiple stages The user can click the items in the list of multiple stage control to open or close tool part by the mouse And the user can control the display model of tool part by selecting the tool attribute Otherwise the user can control the tool display model in the whole stage process Firstly open the INDEX file of multiple stage and then click TOOL MULTIPLE STAGE CONTROL to display the Multiple Stage Control window illustrated in Figure 6 5 1 Multiple Stage Control case 10 Current Case On Taal BIE1 On Tool BINDERA On Taoaol PUNHCH1 5 20 0 Tool PAD On On Tool CAMS Tool Attribute Transparency M Time Interval 1 000080 Show Tools All V Show Blank History Apply Exit Figure 6 5 1 Multiple Stage Control Window 86 eta Post 1 8 1 APPLICATION Chapter 6 TOOL ATTRIBUTE This function enables the user to control the display model of the tool part by selecting tool attributes Figure 6 5 2 shows four tool attributes including Normal Wire Frame Transparency and No Contour The default attribute 1
161. s function to reverse the color of the light and shade region CRISP EDGE Select this function to crisp edge the light strip This option is only available when the number of light sources is set equal to or less than 14 FRAME List all the frames information of the current model If the user clicks one frame the program will re plot the current model and reflection result according to the model in this frame EXIT Exit the function eta Post 1 8 1 TOOL Chapter 5 5 5 ACTIVE WINDOW This function allows the user to display a portion of the model for more detailed viewing Once a desired region 15 selected the program will set this region as the active window and only display the analysis result for a portion of the model Other portions of the model will be masked and inactive The user can define the Active Window by options of Cursor Window Polygon and Freehand or use Undo Redo and Clear Active Window to reset the active window as shown in Figure 5 5 1 After the definition click Exit to quit the Define Active Window Control Option Select by Cursor Select by indor Select by Polygon Select by Freehand Clear Active Figure 5 5 1 Define Active Window Control Window Click CLEAR ACTIVE WINDOW from the TOOL menu to remove the defined active window The program will display the whole model 5 6 NODE TRACE NODE TRACING allows the user to select a set of nodes to be traced during animatio
162. sed to highlight the selected tool X TIME DISPLACEMENT This option is used to define curve type force vs time curve or force vs displacement from home position curve Y FORCE DIRECTION This option is used to define tool force direction total x y and z UNIT This option is used to convert force length and time unit PLOT This option is used to generate new curve Select the button to pop up the curve window as show in Figure 6 11 2 If the user plots two or several curves once the user needs the multi selection in Tool List once Curve Window 1 Z Tonnage 10 die lt a o Ll Displacement from home position MM E1 Print Clipboard Attribute Operation Save C2 Z Tonnage 10 die Curve Option 1 8 x2 ced sw Filter Average Select Computation Modify Y Axis x do dvs Zza Resulting Curve Copy Paste 7 S Y Delete Export il Apply Undo Clear New Graph Exit Figure 6 11 2 Curve window of Tonnage predication 6 12 CURVATURE This function enables the user to show a value corresponding to the curvature encountered if wrinkles occur and later disappear during the forming process The curvature type includes Wrinkle Curvature Mean Curvature Gauss Curvature Max Principal Curvature and Min Principal Curvature The control window is illustrated in Figure 6 12 1
163. sed to specify the display locations of curves in the window 5 14 PART DISTANCE This function is used to calculate the distance between two parts and display the result in contour plot The control window is shown in Figure 5 14 1 The user needs to set the Source part and Destination part The calculation result is displayed on the Source part Fart Distance Tool Set Source Destination Key Points key Points Option Use Elem Narmal Best Fit Move Source Part zPass Fail Parameter Talerance Criteria z Result Start Stop Clear Contour Setting Export Contour Line Export Contour Value List Value Exit Figure 5 14 1 User Control Window 1 TOOL SET SOURCE Select source part for distance calculation DESTINATION Select destination part for distance calculation 2 OPTION USE ELEM NORMAL If this option is toggled off the calculated distance is an absolute value If this option 15 toggled on the element normal direction of two parts should be considered for the calculated distance and the calculated distance value can be positive or negative depending on the normal direction of the source part Figure 5 14 2 a shows the result when the option is toggled off while Figure 5 14 2 b shows the result when the option is toggled on eta Post 1 8 1 79 Chapter 5 BEST FIT TOOL This option is used to compare two parts shape The user can select respective fit points in
164. ser can select the specified file name from the list box to display the related data 2 TYPE The items in Type list box depend on the type of result file For example there are two items in the type list box N A and Wall 1 as shown in Figure 9 3 1 N A indicates the first data type 1s 178 eta Post 1 8 1 GRAPH Chapter 9 not available 3 COMPONENT The COMPONENT list box lists the components related to the selected result file and type The user may display multiple components simultaneously in a graph window The user may select a component by clicking the name in the list or select multiple components by pressing the SHIFT or CTRL key while clicking the mouse button The program plots a curve with a unique color for each selected component 4 PLOT This function plots the selected component s into the current graph window Figure 9 3 2 shows a typical graph window The user may move the graph window to a different location by dragging the title bar in the graph window gt ETAPost Processor 1 7 9 E qa_model 8402231_22 Bf Sk Z 3 HEAR d3plot aida Curve Window 1 FRA 1 BLANK 10_die 2 force 2 BLANK 10 punch Z force gt c 3 BLANK 10_binder 2 force Graph Result File Load Unload ww Contact 5 Contact 5 contact ir 6 Contact 6 contact ir 7 Contact 7 contact ir 8 Contact 8 contact ir 8 Contact 9 contact ir 10 Contact
165. shown in Figure 1 3 2 The other group of icons is used to process the results from eta DYNAFORM including FLD thickness thinning etc as shown in Figure 1 3 3 Each of these icons will be described in digg Figure 1 3 2 General POSTPROCESS Icons eta Post 1 8 1 9 Chapter 1 STRUCTURAL OVERVIEW Figure 1 3 3 Special icons for et DYNAFORM results 1 4 IDENTIFY NODE zt This function enables the user to identify any node by cursor selection default or by keying in the node number with pressing the Enter key The program will highlight the selected node and its number on the screen and output the relevant node number and coordinates in the message window Figure 1 4 1 shows the Control Option window when the function starts Control Option Mode Id Figure 1 4 1 Identify Node Control Option Window Node Id Display cursor selection default or key in the nearest node ID 1 5 IDENTIFY ELEMENT This function enables the user to identify any element by cursor selection default or keying in ID number The program will highlight the selected element with the element number on the screen and label the node number contained in the element It will also display the part which the element belongs to and the node in the element in the message window The operation of this function is the same as the IDENTIFY NODE function 1 6 DISTANCE BETWEEN TWO NODES POINTS This function calculates the distance between two nodes
166. simultaneously can be selected from the dropdown menu Min Element Size It is the minimum element size of the gauge Scan Increment It controls the moving step of the gauge Click the Select Elements button to select and operate the elements The Select Element dialog box is illustrated in Figure 6 15 2 In the Select Element dialog box the Exclude option is to reselect the element to reject the last element selected The All in Region option means only the elements within the selection area can be selected The Spread option signifies included angles between element normals When the element normal is less than or equal to the given value this element will be selected The Select by Line option indicates the projection of the closed line on the view orientation and the elements within it will be selected This option can be used coordinated with the All in Region option The initial mode is Select by Freehand for selecting the element in 3 Point Gauge Check When the user reselects the element the program will adopt the last element selection mode Select Element Element ID Select Cursor Select by Window Select by Polygon select by Freehand select by Line Select by Displayed Reject Last Selected Redo Abort Selected Exclude Allin Region Spread Exit Figure 6 15 2 Select Element option Click any of the frames to display the defect contour The contour color is determined according to the detected
167. size The user may adjust the number direction width and spacing of light source to achieve different zebraing effect The display result is shown in Figure 5 4 2 Light strips are distributed more straightforward and even on the smooth region of the model In the curved region of the model light strips are deflected and are distributed unevenly The degree of deflection 15 in direct proportion to the local curvature variation in the model A non smooth or non uniform light strip usually indicates a surface defect in the part A dynamic display of the light strips moving across the part will help the user to detect surface defects Figure 5 4 3 shows a surface defect detected by a light strip Once the surface defect 15 found the user should use the Stoning function to investigate the magnitude of the defect Face Reflection Operation Orientation Y Mo af Strips 1 Strip Width 20 000000 Spacing 75 000000 Auta Fill Show Light Strips Move Light Strips Change Light Direction Reverse Contrast Crisp Edge 0 000000 0 002400 0 004500 0 007199 0 009599 Exit Figure 5 4 1 Face Reflection Control Window 1 LIGHT SOURCE PARAMETERS 66 eta Post 1 8 1 TOOL Chapter 5 ORIENTATION Set the axial direction for light source There are three options X Y and User Defined The default setting is X X and Y indicate that the axis direction of the light tube is set at global X and Y direction After sel
168. splays the default value of 10 DATA CONTROL Point Number 10 OK Cancel Figure 9 4 9 DATA CONTROL window of AVERAGE filter After the user enters an appropriate number click OK to accept the input value and exit the DATA CONTROL window Then click APPLY to display the filter result FIR FILTER This function allows the user to smooth the curve according to the Finite Impulse Response FIR filter specifications Select the FIR type from the pull down list Click SELECT to display the DATA CONTROL window The program will prompt the user to enter the corresponding parameters in the control window The user may enter any appropriate parameters in the DATA CONTROL windows which displays the default values as shown in Figure 9 4 10 eta Post 1 8 1 189 Chapter 9 GRAPH DATA CONTROL Passband 100 000000 Stopband 90 000000 Max Ripple lo 100000 Min Attenuation 0 000000 Reset OK Cancel Figure 9 4 10 DATA CONTROL of FIR filter FIR PASSBAND FREQUENCY The maximum Passband frequency is determined through the equation Passbanduser Total Number of Points on Graph Time Duration The default value is 10 of the maximum Passband frequency e STOPBAND FREQUENCY Stopband frequency is defined as Stopband Passbanduser Passbanmax Passbanduser The default value depends on the Passbanduser e MAXIMUM PASSBAND RIPPLE MAX PASSBRIPP Passband Ripple value is between 0 0 and 1 0 dB e MINIMUM ST
169. st 1 8 1 81 Chapter 5 TOOL In some cases the initial model has interference in itself The user may need to ignore or keep the interference KEEP Filter the interference from the initial model generated by the current step REMOVE Plot all the interferences without filtering the initial model interference in the current step 3 CONTROL PARAMETER PENETRATION This option is used to check if there is penetration between elements of the parts CONTACT This option is used to check if there is contact between elements of the parts CONTACT GAP This option is only used for Contact interference The value is the maximum allowable gap criterion to distinguish the contact interference TOLERANCE This function is used to control the calculation accuracy 4 PAUSE AFTER FAIL Once this option is selected if there is interference in the animation state the animation will pause automatically after one cycle 5 IDENTIFY INTERFERENCE This function is used to identify the interfering element numbers and highlight them 5 16 EXPORT BOUNDARY LINE This function helps the user to export boundary line of part to file As shown in Figure 5 16 1 click Select Parts to set the parts for the exported boundary line and then click Export Boundary Lines Set file path and name in the subsequent dialogue box the formats of boundary line file are Line Data and IGES Data Export Boundary Line Select Parts Export Bou
170. tapost config file 1s 14 eta Post 1 8 1 STRUCTURAL OVERVIEW ttEta Post User Configure File GRAPHIC ENGINE Renderer Volume Factor 2 Z Buffer Bit 16 Color Buffer Bit 16 Edge Color 255 255 255 Xor Plotter Styler GDI Light Source Type GLOBAL Second Render OFF Mouse Trace OFF Debug OFF Define Rotate Center OFF Polygon Offset ENABLE Frame Rate 10 Default Material ALUMINIUM COPPER SILVER STEEL STEEL BACKGROUND SETTING Background Color OFF Background Top Color 0 0 0 Background Bot Color 6 69 122 WINDOW PARAMETER Layout Type RIGHT eta Post 1 8 1 Chapter 1 Graphic Engine Renderer Volume Factor Z Buffer Bit Bit default 16 bits Color Buffer Bit Bit default 16 bits Edge Color default white Light Source Type default Global Second Render toggle default OFF Set up debug mode of the software default OFF Define Rotate Center toggle default OFF Frame Rate Default Material Background Setting Background Color toggle default OFF Window Parameter Control position of the window default RIGHT 15 Chapter 1 STRUCTURAL OVERVIEW PRODUCT PARAMETER Product Parameter Extended GUI ON Extended GUI on off default ON Environment Configure OFF Model Environment Setting toggle default OFF Color Id 1 2 200 10 400 Color Id 3 2 255 100 50 DRAW SETTING Draw Setting Defect A 0 0005 Defect C
171. ter 6 APPLICATION Springback Distance Iv Normal Distance Calculate Springback Figure 6 14 2 Springback distance calculation control window Normal Distance If this option is toggled on the springback value calculated is the displacement in the direction of Nodes Normal which is the default calculation mode If this option is toggled off the springback value calculated is the value in the direction of the displacement vector as opposed to the original position Calculate Springback Click this button and the program will calculate the springback distance and display the result in contour plot in the graphic area 6 15 3 POINT GAUGE CHECK 3 point gauge check is a face defect check tool which is similar to the stone check the GUI and operation are also similar to stone check The function interface is illustrated in Figure 6 15 1 3 Point Gauge Check Unit Gauge Length 60 000000 Gauge Orient x V Min Elem Size 0 395460 Scan Inc 0 5000 Min Size Element Result Compensate Initial Def Show Test Region By Elements By Region Boundary Select Elems List Value Contour Setting Figure 6 15 1 3 Point Gauge Check control window Unit Select the measurement unit The default is MM Gauge Length 100 eta Post 1 8 1 APPLICATION Chapter 6 Set the gauge length The default is 60MM Gauge Orient Select measurement direction of gauge X Default Y and XY Check both X and Y directions
172. the sliding interface energy with sleout file The following data are included TOTAL SLAVE SIDE TOTAL MASTER SILE TOTAL ENERGY 9 2 19 SPC REACTION FORCES SPCFORC The user can plot the SPC reaction force with file The following data are included X FORCE Y FORCE eta Post 1 8 1 175 Chapter 9 9 2 20 SUBSYSTEM STATISTICS SSSTAT Z FORCE X MOMENT Y MOMENT Z MOMENT GRAPH The user can plot the subsystem statistics with ssstat file The following data are included KINETIC ENERGY GLOBAL KINETIC ENERGY SUBSYSEM 1 KINETIC ENERGY SUBSYSEM 2 KINETIC ENERGY SUBSYSEM 3 KINETIC ENERGY SUBSYSEM 4 INTERNAL ENERGY GLOBAL INTERNAL ENERGY SUBSYSTEM I INTERNAL ENERGY SUBSYSTEM 2 INTERNAL ENERGY SUBSYSTEM 3 INTERNAL ENERGY SUBSYSTEM 4 KINETIC ENERGY RATIOS 1 KINETIC ENERGY RATIOS 2 KINETIC ENERGY RATIOS 3 KINETIC ENERGY RATIOS 4 INTERNAL ENERGY RATIOS 1 INTERNAL ENERGY RATIOS 2 INTERNAL ENERGY RATIOS 3 INTERNAL ENERGY RATIOS 4 X MOMENT 1 X MOMENT 2 X MOMENT 3 X MOMENT 4 Y MOMENT 1 Y MOMENT 2 Y MOMENT 3 Y MOMENT 4 Z MOMENT 1 Z MOMENT 2 Z MOMENT 3 Z MOMENT 4 9 2 21 SPOTWELD RIVET FORCES SWFORC The user can plot the weld spot and rivet force with swforc file The following data are included 176 AXIAL eta Post 1 8 1 GRAPH Chapter 9 SHEAR 9 2 22 TEMPERATURE OUTPUT TPRINT The user can plot the temperature outp
173. tool 1n the result and click Import Tool Wear to import the result to post processor Then the result will be automatically displayed on the selected tool Once the imported wear result is displayed a dialog box as illustrated in Figure 8 5 4 b appears See Figure 8 5 5 eta Post 1 8 1 135 Chapter 8 POSTPROCESS Pressure Wear lt Figure 8 5 4 Tool wear control 6 View Active Steps Result The user can select all the Frames to be displayed from the Frame list to show the wear result of the selected step as shown in Figure 8 5 6 7 Element Result Show tool wear result by element 136 eta Post 1 8 1 POSTPROCESS Chapter 8 TOOL WEAR 0 000510 0 000473 0 000437 0 000400 0 000364 0 000328 0 000291 0 000255 0 000218 0 000182 0 000146 0 000109 7 2799E 05 3 6400E 05 YX P ETA POST Figure 8 5 5 Wear Result of all steps TOOL WEAR 0 000132 0 000122 0 000113 0 000104 9 4223E 05 8 4801E 05 7 5378E 05 6 5956E 05 5 6534E 05 4 7111E 05 3 7689E 05 2 8267E 05 1 8845E 05 9 4223E 06 YX ETA POST Figure 8 5 6 Wear Result of the current step 8 5 4 RESULT Select wear results of parts eta Post 1 8 1 137 Chapter 8 POSTPROCESS l Calculate Tool Wear After Tool Blank and wear parameters are defined click on this option to show the wear result If Show Active Steps Result is selected only the wear result for the selected steps will be displayed as shown
174. training force LCIDNF Load curve ID defining the normal force 198 eta Post 1 8 1 INDEX FILE FORMAT Appendix A LCIDSCL Curve defining relationship between scale factor of drawbead force and normalized drawbead length The abscissa value is between 0 and 1 which is the normalization of drawbead length The ordinate gives the scale factor of drawbead force Scale factor CSID Case ID see CASE_ MULTIPLE DEFINE POPLINE Purpose Define a pop line Card Format Cardl 1 2 3 4 5 6 7 8 VARIABLE DESCRIPTION PLID Pop line identification must be unique LID ID number for 3D line see DEFINE LINE3D PID Part ID attached by pop line see PART DF DEFINE LINE3D Purpose Define a general 3D line Card Format Card 1 1 2 3 4 5 6 7 8 Every Card such as 2 3 4 etc defines a three point coordinate of the point on 3D curve Input is terminated when a card is found Variable Default VARIABLE DESCRIPTION LID ID number for 3D line must be unique PID Part ID see PART DF eta Post 1 8 1 199 Appendix A INDEX FILE FORMAT Y Z Coordinates of points on 3D line CASE MULTIPLE Purpose Define the names of multiple cases in order Input is terminated when a card is found Card Format Card 1 1 2 3 4 5 6 7 8 1 11 LLL Card 2 Variable CASENAME Default Uwe VARIABLE DESCRIPTION CSID Case identification must be unique TRANID Transformation ID if 0 no trans
175. trol the marker for the physical quantity in the graphic area on the screen The maximum is usually marked with and the minimum is marked with o 7 5 LOGO toggle This function is used to toggle on off the Company Logo eta at the lower left corner of the screen 7 6 NORMAL COLOR toggle When NORMAL COLOR is toggled on PLATE NORMAL from DISPLAY OPTIONS at the lower right corner of the screen is used to display the color of the finite element model The front side is the original color of the part and the reverse side is gray When NORMAL COLOR is toggled off PLATE NORMAL from DISPLAY OPTIONS at the lower right corner of the screen is used to display the normal of the finite element model and an arrow is displayed along the normal of each element This option can help the user to check the normal inconsistencies in finite element mesh The operations of NORMAL COLOR and PLATE NORMAL are shown in Figure 7 6 1 Figure 7 6 1 Parts displayed in different colors in normal directions 7 7 BOUNDARY LINE This option is used to toggle on off part boundary line 104 eta Post 1 8 1 OPTION Chapter 7 7 8 ELEM OUTLINE This option is used to toggle on off the solid element outline 7 9 ELEM ORIENTATION This option shows the orientation of each element and displays an arrow at the element edge in turn It helps the user to view the normal vector direction determine the normal vector in accordance with the right hand rule The operati
176. u License management setting Default CHECK ALL eta Post 1 8 1 STRUCTURAL OVERVIEW Chapter 1 FILE MANAGER File Manager File Type 0 Macro Index ON DIRECTORY Directory that record the last opened files Home D Software_test op10_4 NOTE Some parameters can be selected in the Edit and Option Menu on eta Post interface Users can adjust the position of the control window according to their own preferences left or right There are options for print file typesetting in the Print Menu eta Post 1 8 1 19 GETTING STARTED Chapter 2 Chapter 2 GETTING STARTED The user begins a session by entering the program name eta POST at the Linux UNIX prompt or double clicking the eta Post icon at the Windows Once the program is activated it displays the program window and is ready for operation Figure 2 1 shows the main GUI ETA Post Processor 1 8 1 File Option Help DER Sad geao e e eta Post 1 8 1 2 Shade COPYRIGHT 1998 2010 ALL RIGHT RESERVED SET OPENGL XOR MODE ON m Iv Smooth Shade M Material Color ElementEdge Shrink Hidden Surface Plate Normal M Background Fill Color Ready Figure 2 1 eta Post Main Window 2 1 GETTING STARTED WITH D3PLOT FILE Start eta Post and open the desired file via the OPEN command in the FILE MENU This function displays the Open File dialog and allows the user to read result file or model file into eta Post Figure 2 1 1 s
177. u the program will pop up a dialog box as shown in Figure 4 9 1 Rotate View amp Virtual Rotation Screen Rotation x 0n DEG Y foo DEG z DEG Use Previous Rotate Center Apply Exit Figure 4 9 1 User Define Rotate View dialog box If Virtual Rotation is selected fill in the textbox for X Y and Z with data Click APPLY the view will rotate by the corresponding angle about the X Y and Z axis If Screen Rotation is selected the rotation axis 1s the screen rotation axis When Define Rotate Center under Option is selected if Use Previous Rotate Center option is toggled on after clicking APPLY there is no need to select the rotate center again If this option is toggled off after clicking APPLY the program will prompt the user to select a new rotate center If Define Rotate Center under Option is not selected the default rotation center is the local coordinate center or screen coordinate center 48 eta Post 1 8 1 EDIT MENU Chapter 4 4 10 USER VIEW This function is used to save the current view and recall the previously saved view The user is allowed to save up to 10 views in a database The program displays a dialog box as shown in Figure 4 10 1 View List vigew 1 vigw 7 Recall View Exit Figure 4 10 1 User View dialog box 1 SAVE VIEW Save the current view The program assigns a default name for the current saved view as shown in Figure 4 10 2 The user can a
178. ure 8 3 10 Figure 8 3 11 Figure 8 3 12 Figure 8 3 13 Figure 8 3 14 Figure 8 3 15 Figure 8 3 16 Figure 8 3 17 Figure 8 3 18 Figure 8 3 19 Figure 8 4 1 Figure 8 5 1 Figure 8 5 2 Figure 8 5 3 Figure 8 5 4 Figure 8 5 5 Figure 8 5 6 Figure 8 6 1 Figure 8 6 2 Figure 8 6 3 Blank Maternal 0lOf dea eden exei died wa uud aeu os 108 Nodal Cons E ER RD 108 Deform control oe ei oS 110 Frames ODGFIHOFS E 111 AMAA 112 vastat tete es eich clade iste A 112 Pause De EE tU 112 Contour CONTEO WINGO 114 Contour mapped on the un deformed 118 Contour mapped on the deformed 118 ISO Surface Control WIBOdOW or ese aestus 119 An example Tor Mixed Component esu 120 Contour Wind OW s 22 tora aea o 121 An Example for Contour Plot of 12 Colors in RGB Mode 122 Contour eoo IB E Ee us 123 Adjust Contour TS 124 Reverse the Color ob Contour Dat 124 CONTOUR OPERATION 5 ve m et ets eiat tana etd tud 125 PEGE OPERATION nini amid
179. urve they should click the load curve as the first curve and the deflect curve as the second curve The program will plot the load as the Y coordinate and deflection as X coordinate in the new curve Itis recommended to plot the cross plot curve to a new graph window to obtain a proper scaling 2 sum This function enables the user to make a sum operation for two or more curves zA e AVERAGE This function enables the user to make an average operation for two or more curves RESULTING CURVE The RESULTING CURVE window displays the curve operation expression in real time during the definition and operation process When the user clicks the curve name in the curve name window the program displays the curve number in the Resulting Curve window When the user clicks an operation the program will add the operation symbol at an appropriate location related to the curve number For example if the user clicks the first curve name from the curve name window and then clicks Add from the computation group and then the second curve name the program will display C2 in the Resulting Curve window If the user than clicks the ER from the Curve Option group the program will display C1 C2 RtQ This means the program is adding the first curve to the square root of the second curve There are two colors for the expression in RESULTING CURVE window One is black and another 15 red If the color of the expression is black it means that t
180. ut data with tprint file The following data are included HEAT GENERATION TOTAL HEAT GENERATION CHANGE INTERNAL ENERGY INTERNAL ENERGY 9 3 GRAPH CONTROL WINDOW The user can select a file from the Select File window and click Open to load the file eta Post can read in various types of result files generated from LS DYNA The number of result files generated from LS DYNA is related to the type of analysis and output result setting in pre processor The user may simultaneously load many files into the current database for processing as shown in Figure 9 3 1 eta Post 1 8 1 177 Chapter 9 GRAPH Graph Result File qistat qlstat Component 1 Kinetic Energy 2 Eroded Kinetic Energy 3 Internal Energy 4 Eroded Internal Energy 5 Total Energy 6 Total Initial Energy Energy B spring Damper Energy 9 Hourglass Energy 10 Damping Energy 11 Sliding Energy 13 External Work 14 Step Size 15 velocity 16 Y velacity 17 velocity Time per zone cycle 18 Number af shell eleme 20 Added Mass 21 Mass Increase hd Plot New Graph Exit Figure 9 3 1 Graph control window There are several List boxes in the Graph control window The number of list boxes varies with the type of result file The detailed description of each function is given below 1 RESULT FILE The Result File list box displays the name of result files loaded in the current session The u
181. v Step Inc Wrinkle Curvature Show Wrinkle Only Dihedral Angle j170 00 Max Value 0 05000 Select Reference Frame 0000000 0 004799 0 009599 0 014400 0 019199 Contour Region List Value Figure 6 12 3 Step increment mode 6 13 WRINKLING AMPLIFIER This function enables the user to select a possible wrinkling area the wrinkling amplifier enlarges wrinkles to make them visible The control window is illustrated in Figure 6 13 1 Firstly the user can select a possible wrinkling area and then input the appropriate amplifier scale value When the user runs single frame the wrinkling will be enlarged in the selected area Figure 6 13 2 shows an example of the wrinkling amplifier function 98 eta Post 1 8 1 APPLICATION Chapter 6 Wrinkling Amplifier Amplifier Scale o Selectarea Frames All Frames Reset Ie 0 001052 Frame Number 1 FramesiSecant 20 Figure 6 13 1 Wrinkling Amplifier control window a Before Enlarge b After Enlarge Figure 6 13 2 The Result of Wrinkling Amplifier 6 14 SPRINGBACK DISTANCE This function is used to calculate the displacement during springback and it can only deal with d3plot files in the springback result The result includes two frames The first frame is the shape before deformation and the second frame is the shape after deformation The control window is shown in Figure 6 14 1 eta Post 1 8 1 99 Chap
182. wn in Figure 8 3 12 eta Post 1 8 1 125 Chapter 8 POSTPROCESS User Defined Contour Setting User Defined Contour List gt Contour Operation Import User Defined Contour Append Export User Defined Contour Export All Export Select Delete Figure 8 3 12 FILE OPERATION 8 3 12 EXPORT CONTOUR LINE This function allows the user to export the contour line only when the CONTOUR LEVEL is not set to CONTINUE to a DYNAFORM Lin Data file The program prompts the user to enter the file name After entering the file name and clicking the SAVE button the contour lines will be saved to the defined file 8 3 13 EXPORT CONTOUR VALUE This function allows the user to export the contour line only when the CONTOUR LEVEL is not set to CONTINUE to a DYNAFORM LST Data file The program prompts the user to enter the file name After entering the file name and clicking the SAVE button the contour lines will be saved to the defined file 8 3 14 LIST VALUE This function lists the contour value of the selected nodes Gf ELEMENT RESULT is selected then list element contour value The node value is listed in the following steps Click the LIST VALUE option in CONTOUR CONTROL WINDOW The Control Option window is displayed with the Input Node ID or Element ID Option Select Node Option and Node Value Display Option as shown in Figure 8 3 13 126 eta Post 1 8 1 POSTPROCESS Chapter 8 Node ID

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