Structural Analysis Software Applications
Contents
1. 1 138403 j 1 29 03 Fi H n 1 44E 03 j R i SA S S 5 m em j DISPLACEMENT MAGN IFICATION ACTOR 128 DISPLACED MESH RESTART FILE sdr 4x4 AYER 1 INCREMENT 1 TIME COMPLETED IN THIS STEP 00 TOTAL ACCUMULATED TIME 1 00 SA j ABAQUS VERSION 5 8 1 DA TE 419 MAY 1999 TIME 08 50 48 draw draw displaced RESTART FILE s r 4x4 STEP 1 INCREMENT 1 TIME COMPLETED IN THIS STEP 1 00 TOTAL ACCUMULATED TIME ABAQUS VERSION 5 6 1 DATE 19 MAY 1999 TIME 06 50 48 Structural Analysis Software Applications 64 Ohio Supercomputer Center ABAQUS Viewing Results with ABAQUS Viewer Dm s All of the functionality of a YA KR AK a Op ABAQUS Post with nice GUI Z8 EN e AARNA RS AOJO w ube Visuakzazon i OCR ery er zf edb xj interface e Will replace ABAQUS Post after v5 8 e What replace actually means is yet to be determined abagus v5810 viewer odb jobname Baue conor 0 Frm ed ald arn Rumber of elements 38086 Sumber of modes e527 Structural Analysis Software OSC Applications Ohio Supercomputer Center 65 ABAQUS Akk RAZII ABAQUS Web Information DT e ABAQUS Home page http www abaqus com e ABAQUS Examples http www abaqus com applications applications html e ABAQOUS Training http www abaqus com training services training services html e Official OSC supported software page http oscinfo osc edu software Structural Anal2. e Restart ANSYS in graphical interface mode with the correct job name ansys g J bracket e From the TOOLBAR click RESUME DB or From the UTILITY MENU click RESUME JOBNAME DB from the FILE pull down menu oes Structural Analysis Software Sal b Applications d walt Ohio Supercomputer Center 89 ANSYS Postprocessing ANS v5 eAfter solution is obtained you must read in the results by selecting one of the options under READ RESULTS eResults fall into 4 major categories eDeformed shape plots a Contour plots X Y plots e Viewing numerical results Deformed Shape Structural Analysis Software OSC Applications Ohio Supercomputer Center 90 Contour Plots AN eContours available for both nodal and element properties eAll parameters saved no need to specify before the solution which parameters you would like to examine E 7 d Nodal Sol yine mm Structural Analysis Software OSC Applications Ohio Supercomputer Center 9 Contour Plots ANSYS 5 4 MAY 21 1999 Le eS NODAL SOLUTION STEP 1 SUB 1 TIME 1 o E a DME 001209 SIN 4d 727 SIME 3041 MB EK 5 SNACK 342 102 679 47T 1017 1354 1692 ade 466 a fod 3041 SMHE EZ Ca Los E Corner Bracket vm rs o Structural Analysis Software 7 SC Applications bal ei Aa Ohio Supercomputer Center 92 Viewing Numerical Results ANS v5 cen a V eProcedure similar to contour pl
3. OSC Applications e ut Vu Ohio Supercomputer Center Q Access to OSC systems e All access is remote telnet ssh e Local machine gt the machine you are sitting at e Remote machine gt The OSC supercomputer T90 T3E or Origin e X Window Graphics Standard on Unix workstations Need extra software for PC or Mac e Pre and post processors may be run interactively e Solvers must be run in batch mode oes Structural Analysis Software OSC i Applications F ze Ve Ohio Supercomputer Center 9 Enabling X Window Graphics Command xhost origin osc edu w W on Origin 2000 who on T90 and T3E echo SSHELL 1f csh setenv DISPLAY oscnetl08 osc edu 0 0 if ksh export DISPLAY oscnet108 osc edu 0 0 OSC Ohio Supercomputer Center Description This command is executed on your ocal machine It authorizes the OSC computer to display graphics on your local workstation You must issue this command for each computer you want to use Only for UNIX workstations This command 1s executed on the remote machine The purpose is to get your ocal IP address Jing BEY 52 3 48pm oscnet108 osc edu echo SSHELL will tell you which shell you are in This command is executed on the remote machine It instructs the remote computer where to send the display The local name was obtained from the 2nd line printed by the w W command Structural Analysis Software EES LS DYNA Package LS DYNA Modeling Fea
4. ngs 161 gs ub INFO Request lt 7567 0sca gt Submitted to queue lt batch gt by lt jimg 6815 gt Resulting Data Files year S d abaqus env ar 4x4 com rw r r s r 4x4 dat e d s4r_4x4 1inp Se A s4r_4x4 log y s4r_4x4 msg el s r 4x4 g Structural Analysis Software Sal b Applications ed malt Ye Ohio Supercomputer Center 60 ABAQUS Viewing Results with ABAQUS Post DT ABAQUS Post is being replaced by ABAQUS Viewer Text command interface Mouse input for image rotation displacement and zoom abagus v5 8 post restart s4r_4x4 Reading restart file s4r 4x4 ABAOUS Version 5 8 1 Date 12 MAY 1999 No No No NO of elements of nodes of element sets of node sets Reading element data Reading node data Reading element sets Reading node sets Restart file s4r 4x4 Current step ine 1 1 OSC Structural Analysis Software Applications Ohio Supercomputer Center 61 ABAQUS ABAQUS Post Commands DDT draw options displaced original grid and deformed grid overlaid in different colors CONTOUr ODEIOnS variable parameter required name of the variable to be contoured range print the min and max values of this variable without plotting set options under formed onloff command to plot only the deformed shape d magnification scale displacements to improve display n numbers on off option to display node numbers el numbers on off option to
5. 1 00 00 Strongly suggested OSUB eo Code version desired e cp jimg examples abaqus s4r_4x4 s4r_4x4 inp STMPDIR ed STMPDIR ssusage abagus v5 8 17 interactive job s4r_4x4 cp jimg examples abaqus s4r_4x4 Structural Analysis Software OS Applications d mult Ye Ohio Supercomputer Center 58 ABAQUS FTTTTTTIII Running datacheck Prior to Solver MT origin S abaqus v5 8 1 datacheck interactive job s4r_4x4 ABAQUS JOB sdr 4x4 BEGIN USER INPUT PROCESSING Wed May 19 00 55 16 EDT 1999 Run local abaqus 5 8 bin pre x ABAQUS License Server checked out 5 Network Tokens Wed May 19 00 55 19 EDT 1999 END OF USER INPUT PROCESSING BEGIN IMPLICIT DATACHECK Wed May 19 00 55 19 EDT 1999 Run local abaqus 5 8 bin standard x ABAQUS License Server checked out 5 Network Tokens Wed May 19 00 55 21 EDT 1999 END OF DATACHECK ABAQUS JOB sdr 4x4 COMPLETED Resulting Data Files e e Se ee ge EE es Ke eee ce E et Ronee e e Ea EE EN AE EN i gered e e ei ee Structural Analysis Software Sal b Applications ed walt Ye Ohio Supercomputer Center 59 ABAQUS Running ABAQUS Solver on T90 DDT OSCA abaqus v5 7 job s4r_4x4 ACADEMIC ABA US 5 7 1 Network CRAY JOB TIME LIMIT enter s for s secs enter m s for m mins Ss secs enter h m s for hrs mins secs Or carriage return for 1 0 120 enter m for m megawords or Carriage return for 8 Mw 8 ABAQUS STANDARD is running on a Category D machine
6. 17 Pre Processor ABAQUS Pre ABAQUS CAE Origin only Post Processor ABAQUS Post ABAQUS Viewer Origin only Solver ABAQUS Standard ABAQUS Explicit Structural Analysis Software OSC Applications Ohio Supercomputer Center A5 ABAQUS Akk RAZII ABAQUS Documentation DT e Hardcopy Manuals are available for reading at OSC and can be purchased from HKS Inc e Online documentation is available on the Origin v5 8 only ABAQUS Theory ABAQUS Standard Getting Started No online version Users Manual Volumes I II HD Sample Problems Volumes I 11 ABAQUS Explicit Getting Started No online version Users Manual Volumes I ID Sample Problems ABAQUS Viewer ABAQUS CAE Structural Analysis Software Sal b Applications ed ef Ge Ohio Supercomputer Center A6 ABAQUS FTTTTTTIII General Analysis Procedure DDT e Generate ABAQUS input file with text editor Define mesh loads and constraints Utilities for creating simple cylinders amp blocks e Run datacheck on input files e View model with ABAQUS Viewer View mesh Check boundary conditions and applied loads e Run ABAQUS solver e View results with ABAQUS post processor Wide range of display options as well as animation capabilities NOTE as of the spring 2000 ABAQUS CAE 1s under evaluation and only one license has been purchased Structural Analysis Software OSC Applications m Ye Ohio Supercomputer Center AT ABAQUS ABAQUS Pre
7. force lt direction gt indicates which direction the force should act format is xdir ydir zdir 1 0 0 would act in the positive x direction O 1 0 would act in the negative y direction e load curve can apply over an area or as a point load Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 23 Sample LS INGRID Input File Problem Circular bar impacting solid surface bar impact problem gm cm microsec dnsd term 80 0 piti 1 0 Pret 51 velocity U 0 0 0227 c Define symmetry planes plane 3 0 0 0 0 1 0 001 symm H ED 1 0 0 001 symm O 00 0 0 1 001 symm c Define bar Start c Define index space L147 l0 Loe 4 E Lop 7 c Define coordinate of index space oO eG U G EO ER L U OSC Ohio Supercomputer Center e 16 vio U S224 bar impact problem gm cm microsec e Structural Analysis Software Applications 26 Sample LS INGRID Input File c Delete corners for cylindrical mapping qd 0 100 3 H d A0 3 0 0 di 1 2 0 4 5 1 2 0 4 5 c Capture surfaces to be mapped c and map in cyld space SiL siis e oy 0 0 0 0 sa mate 1 end c Use tp 0 001 interactively in Ingrid c Define material properties mat 1 3 EO 693 sigy 0 004 e 1 17 etan 0 001 beta 1 0 pe e endmat end end OSC Ohio Supercomputer Center bar impact problem gm cm microsec LC Structural Analysis Software Applications 27 Running LS INGRID Only
8. restart file per step Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 52 ABAQUS ABAQUS Pre History Data DDT Object database odb file Binary file used to store model information and analysis results for use by ABAQUS Viewer Variables to be written to the output database are defined by using the following output variable identifiers OUTPUT FIELD HISTORY FREQUENCY ELEMENT OUTPUT VARIABLE ALI PRESELECT NODE OUTPUT CONTACT OUTPUT ENERGY OUTPUT FIELD output is used to generate contour plots displaced shape plots and symbol plots large data size low sample frequency HISTORY output is used to generate X Y plots small data size high sample frequency Structural Analysis Software OS Applications ed zf Ye Ohio Supercomputer Center 53 ABAQUS ABAQUS Pre History Data DDT Data dat file Text file which contains information about the model definition and tabular output of results The values of output variables can be printed in tabular format throughout the analysis EL PRINT NODE PRINT CONTACT PRINT XENERGY PRINT Specify the variables to be printed in each output table For element variables also specify the locations at which they are to be printed Structural Analysis Software OS Applications ed zf Ye Ohio Supercomputer Center 54 ABAQUS Akk RAZII Sample ABAQUS Input File HTT HEADING SIMPLY SUPPORT
9. um Input file is split into two parts e Model data defines a finite element model e History data defines what happens to the model User divides this history into a sequence of steps each of which isa period of response of a particular type static loading dynamic response etc Definition of a step includes e procedure type static stress transient heat transfer etc e control parameters for time integration or for the nonlinear solution procedures e loading e output requests Structural Analysis Software Sal b Applications ed walt Ye Ohio Supercomputer Center 48 ABAQUS ABAQUS Pre THT e All data definitions are accomplished with option blocks sets of data describing a part of the problem definition Each option 1s introduced by a keyword line e Keyword lines begin with a in column 1 followed by the option name e is a comment e Keyword lines are comma separated free format e Data lines may be associated with the option if so they must follow the keyword line Structural Analysis Software Sal b Applications ed ef Ge Ohio Supercomputer Center 49 ABAQUS Pre Model Data ABAQUS NODE and ELEMENT define individual entities NGEN and ELGEN generate a range of entities Nodes and elements can be grouped into sets NSET and ELSET keyword parameter comma separated lists Groups of elements or nodes can then be referred to as one entity Material definition MATERIAL All keywo
10. 3D ANS Y S LS NIKE 3D WA WW LS INGRID ANSYS 5 5 LS TAURUS LS POST Structural Analysis Software OSC i Applications F ut A Ohio Supercomputer Center 5 Overview of OSC Systems Origin 2000 CrayT3e Massively parallel system High performance components Distributed memory 16 Gbytes 128 Processors Scalable RISC system Distributed Shared memory 16 Gbytes 32 processors High end vector processing Shared memory 1 Gbyte 4 processors Cluster Cray SN scalable vector processing Shared memory 16 Gbytes 16 processors Massively parallel system Commodity components Distributed memory 64 Gbytes Las 20 128 Processors E E poo Structural Analysis Software Applications Ohio Supercomputer Center 6 Software by System Cray T90 osca osc edu Shared memory vector machine ABAQUS v5 7 LS DYNA v 940 la amp LS DYNA v 950 NASTRAN v 70 5 ANSYS v5 5 Cray T3E t3e osc edu Distributed memory MPP machine MPPDYNA v 940 0 beta SGI Origin 2000 origin osc edu CCNUMA memory machine ABAQUS v5 7 4 v5 8 land v5 8 17 LS DYNA v 940 0 940 la 950 0 ANSYS v5 5 gm Structural Analysis Software OSC Applications Ohio Supercomputer Center 7 Software by System Cray SV1 oscb osc edu Shared memory vector machine LS DYNA v 950 Cray SV OSC SGI Intel Linux Cluster oscbw osc edu Distributed memory MPP machine LS DYNA v 940 2 Cluster Structural Analysis Software
11. ED SQUARE PLATE WITH UNIFORM PRESSURE SAR 4 X 4 MESH PREPRINT ECHO YES MODEL NO HISTORY NO RESTART WRITE NODE NSET CORNERS i Jez or om Lay om 401 any il oy Lag d NGEN NSET BOT yol NGEN NSET TOP 401 405 541 NFILL BOI TOP 4 100 NSET NSET SIDES GENERATE lord AER ee Oho ram 101 LOO 5 405 100 gm Structural Analysis Software OSI b Applications Ohio Supercomputer Center 55 ABAQUS Akk RAZII Sample ABAQUS Input File HTT NSET NSET CENTND 203 ELEMENT TYPE SAR tr dp Gs Oz 101 ELGEN ELSET ALLELS gay GE LOU 4 ELSET ELSET CENTER Oz e ll MATERIAL NAME METAL PLASTIC el e SHELL SECTION MATERIAL METAL ELSET ALLEL 20179 BOUNDARY LDE Sy kyo gm Structural Analysis Software OSI b Applications Ohio Supercomputer Center 56 ABAQUS Akk RAZII Sample ABAQUS Input File HTT STEP STATIC DLOAD ALLELS P 1 NODE PRINT NSET CENTND U EL PRINT ELSET CENTER POSITION AVERAGED oE NODE FILE NSET CENTND U EL FILE ELSET CENTER POSITION AVERAGED OF SEND OTEP gm Structural Analysis Software OSI b Applications Ohio Supercomputer Center 57 ABAQUS Running ABAQUS Solver on Origin 2000 mmm abagus v 5 7 5 8 1 5 8 17 interactive viewer post datacheck job jobid where jobid name of input file without extension Required Batch submission file interactive keyword wi Gin dat Job name OSUB 1M 1 6Mw OSUB 1T
12. Ohio Supercomputer Center ANSYS Structural Analysis Software Ppp ieee ANSYS Command Line Options ANSYS ansys m MW J jobname g m MW This option specifies the amount of working storage obtained from the system The units are megawords The memory requirement for the entire execution will be approximately 5 3 megawords more than the m specification j Jobname This option allows the user to specify the jobname on the command line When loading data ANSYS uses the jobname as the file name and looks for specific extensions g Specifies that the ANSYS menu system be started automatically ANS YS requires the module load command to set proper environment variables module load ansys Structural Analysis Software Sal b Applications ed walt Ye Ohio Supercomputer Center 70 ANSYS User Interface Main Menu File Select List Plot PlotCtrls WorkPlane Parameters Macro MenuCtrls Help ePrimary ANSYS functions ePop up menus based on the progression of the program Utility Menu ePull down menus eAvailable any time during analysis Input Window eProvides area for typing in ANSYS commands eCommand history Graphics Window eArea for graphics display Toolbar eOne click access to common functions eUser can customize the toolbar Structural Analysis Software OS Applications ed zf Ye Ohio Supercomputer Center 73 SYS Model Development Preprocessor eANSYS Main Menu will be the sta
13. Structural Analysis Software Applications Science and Technology Support High Performance Computing Ohio Supercomputer Center 1224 Kinnear Road Columbus OH 43212 1163 OSC Ohio Supercomputer Center Table of Contents Introduction LS DYNA Program ABAQUS Program ANSYS Program gm Structural Analysis Software OSC Applications Ohio Supercomputer Center 2 Introduction Course Objectives OSC Structures Packages OSC Computer Systems Access to OSC Systems Enabling X Window Graphics Structural Analysis Software OSC Applications Ohio Supercomputer Center 3 Course Objectives 1 Provide the user with information necessary to select which software package is best suited for a given problem 2 Review basic functionality of each package This will be accomplished by Review the modeling capabilities of each package gt Learn how to configure graphic sessions from OSC to your local workstations Examine the basic functionality of pre and post processors through lecture examples and labs gt Learn how to execute analysis in batch mode Identify important sources of documentation and information oes Structural Analysis Software OSC i Applications F ze Ve Ohio Supercomputer Center A OSC Structures Packages ABAQUS M e EE ES filacNeasl Schwendler Lonporation ABAQUS Standard ABAQUS Explicit Livermore ABAQUS Post Software ABAQUS Viewer De Technology ABAQUS CAE Corporation at mii LS DYNA
14. available on Origin 2000 Command lsingrid e When asked to choose display device select X for X Windows e To load LS INGRID input file Click on INPUT Select INGRID File Type Type in the name of your input file Click on GRAPHICS gm Structural Analysis Software OSI b Applications Ohio Supercomputer Center 28 LS INGRID View Options eee ee redraws the object anytime you EE IN b gm em microsec ORIENT Orien Coste a change a BOUNDS Bound Nf DISCRETE Discr GOOD draws the model in line mode E using a hidden surface removal algorithm SHAD gives a solid shaded image RY RZ rotate object about the x y Or Z axis respectively lt n user selected zoom in Structural Analysis Software OSC Applications m Ye Ohio Supercomputer Center 29 Generating LS DYNA Input Deck e Merge coincident nodes if necessary tp tolerance for this example DN3D DYNA3D s DN2D DYNA2D e Under Main Menu click OUTPUT ech e Under Output Type click DNSD e Under Dyna3d click KVV93 e Under Set Offset click DONE e Under Main Menu click OUTPUT e Under Output Type click FILE e Type in the name for the new LS DYNA input deck e Under main Menu click CONTINUE Structural Analysis Software OSC Applications m Ye Ohio Supercomputer Center 30 Running LS DYNA Solver on T90 amp SVI De Batch submission file s LS DYNA support
15. better parallel perf l write one only ACCU Accuracy flag for parallel solution Izon default 2 off faster solution LS DYNA3D Formatted file CARD 16 Computation Option Parallel and Subcycling ele ese e em Ye E One oe ee NCPU SORT SUBS 24 Structural Analysis Software OSI b Applications d walt Ye Ohio Supercomputer Center 35 Running LS DYNA Solver on Origin 2000 De e Origin does not requires the module load command e ssusage command provides resource usage including maximum memory used e Must specify a minimum of l6Mw e Modifications for parallel job eAdd I mpp_p specifier e Add CONTROL PARALLEL keyword line to dyna input deck OSC Ohio Supercomputer Center OSUB r lsdyna_bar OSUB 1T 300 OSUB 1M 16Mw OSUB eo SOL x cp SHOME examples lsdyna_bar bar dyna STMPDIR cd TMPDIR ssusage lsdyna I bar dyna O bar out cp HOME examples lsdyna bar Batch submission file parallel OSUB r lsdyna_bar OSUB 1T 300 QSUB 1M 16Mw OSUB 1 mpp_p 8 OSUB eo Seu X cp SHOME examples lsdyna_bar bar dyna STMPDIR cd TMPDIR ssusage lsdyna I bar dyna O bar out cp HOME examples lsdyna bar Structural Analysis Software Applications 36 LS TAURUS Post Processor Ur e Available on T90 SV1 and Origin Recommend running on Origin better interactive response Avoid running on the T90 if possible very limited memory e There are two important command
16. d ef WA Ohio Supercomputer Center 16 Object and Index Space Object space Dimensions in physical space Specified as xmin ymin zmin xmax ymax zmax Index space Mesh attributes Specified as imin ymin kmin imax jmax kmax Object space 5 m 0 0 0 0 3 9 7 0 Index space in m 1143 oes Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 17 Index Progression De e Builds on the concept of an index region imin jmin kmin imax jmax kmax e This defines the outside dimensions of the region but what if we want to detail an internal component i e refine the mesh e To change meshing in x coordinate direction Index region imin imax xmin xmax Index progression imin 12 13 14 imax jmin jmax kmin kmax xmin x2 x3 x4 xmax ymin ymax zmin zmax e Also gives the functionality to create multiple regions e To set min max use a negative value e A zero index 1s used to indicate that a structure 1s discontinuous Structural Analysis Software OSI b Applications d ef WA Ohio Supercomputer Center 18 Reduced Index Space De e Forces and boundary conditions for the complete object are applied when the region where the force is applied is defined e Reduced index space means you are narrowing your focus to only the index range of one particular part e Fora generic part imin il 12 13 imax We have reduced index 1 2 3 4 5 Structural Analys
17. display element numbers nodes control the size of dot symbol displayed at node locations bc display on off toggles the plotting of boundary conditions load display on off toggles the plotting of loads fill on off contour plots with discrete filled colored regions shade on off contour plots with smooth shaded colored regions Structural Analysis Software OSC Applications m Ye Ohio Supercomputer Center 62 ABAQUS ABAQUS Post Commands DDT report elements parameter Report the element number element type material name if applicable and nodal connectivity list displaced this parameter indicates the displaced shape 1s to be used to select the elements for reporting report nodes parameter Report the node number the current coordinates and if available the displacements for nodes picked displaced see description above original use this parameter if the reported coordinates will be those of the undeformed shape report values parameter variable name required name of the variable to be reported displaced see description above integration point set this parameter equal to the element integration point at which the variable is to be obtained default is all integration points Structural Analysis Software OS Applications ed zf Ye Ohio Supercomputer Center 63 ABAQUS Post Example Problem SECTION POINT 1 511 VALUE 5 OSE O2 Z j j i 6 61E 02 Le 8 17E 02 Wee 9 73E 02
18. e page http oscinfo osc edu software University of Cincinnati Center of Excellence in DYNA3D Analysis http www ase uc edu atabiei center html Structural Analysis Software OS Applications ed zf Ye Ohio Supercomputer Center 41 ABAQUS ABAQUS Package TTT ET ABA US Modeling Features ABAQUS Components ABAQUS Documentation Generating ABAQUS Input File Running ABAOUS Solver on Origin Running ABAOUS Solver on T90 Viewing Results with ABA US Post Viewing Results with ABAQUS Viewer Structural Analysis Software OSC Applications Ohio Supercomputer Center 42 ABAQUS ABAQUS Modeling Features DDT ABAQUS Standard 1s a general purpose production oriented finite element program It provides a variety of time and frequency domain analysis procedures These procedures are divided into two classes general analyses in which the response may be linear or nonlinear and linear perturbation analyses in which linear response is computed about a general possibly nonlinear base state General Analyses eStatic stress displacement analysis eViscoelastic viscoplastic response eTransient dynamic stress displacement analysis Transient or steady state heat transfer analysis Transient or steady state mass diffusion analysis Linear Perturbation Analyses Static stress displacement analysis Linear static stress displacement analysis Eigenvalue buckling load prediction Dynamic stress displacement analysis Determination
19. ed on all OSUB r lsdyna bar platforms OSUB 1T 300 OSUB 1M 16Mw e T90 amp SV1 require the module III GOC load command module load lstc cp SHOME examples lsdyna_bar bar dyna STMPDIR e cd STMPDIR ja command provides a detailed resource usage report including A ee Kee f je LENS max mum memory used cp SHOME examples lsdyna_bar e Must specify a minimum of 16Mw e Versions available y 940 1 T90 v 940 SV1 v 950 oes Structural Analysis Software Applications OSC Ohio Supercomputer Center DU n LS DYNA Command Line Options Isdyna Izinf o otf G ptf D dpf F thf T tpf A rrd M sif J j1f S 1ff Z isfl L 1isf2 B rlf W root E efl X scl C cpu K kill V vda Y c3d KEYWORD THERMAL COUPLE MEMORY wds The commonly used options are inf input file user specified otf high speed printer file default D3HSP ptf binary plot file for graphics default D3PLOT dpi dump file for restarting default D3DUMP rrd running restart dump file default RUNRSF sif stress initialization file nwds number of words to be allocated If you use the MEMORY command line option you must request an additional 5Mw in your batch script above what is given on the command line Structural Analysis Software OS Applications ed zf Ye Ohio Supercomputer Center 39 Running LS DYNA Solver on T3E De e T3E requires the module e Load command Batch submission file QSUB r lsdyna_pipe_8pe e Ja command p
20. eneration Adaptive mapped meshing P and h element meshing e Postprocessing Contours vector displays and graphics of potentials and field data Animation of results data 3D volume visualization tools including isosurfaces gradient displays volume slicing section displays and translucency General line integral and mapping features oes Structural Analysis Software Sal b Applications d walt Ohio Supercomputer Center 69 ANSYS Documentation ANSYS e Hardcopy manuals can be purchased from HKS Inc e Full on line documentation is available module load ansys anshelp55 ANSYS Basic Analysis Procedures Guide ANSYS Modeling and Meshing Guide ANSYS Structural Analysis Guide ANSYS Thermal Analysis Guide ANSYS Coupled Field Analysis Guide ANSYS Advanced Analysis Techniques ANSYS Commands Manual ANSYS Elements Manual ANSYS Theory Manual ANSYS Operations Guide e Hypertext based help system 1s also available via HELP buttons during the analysis oes Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 70 General Analysis Procedure Assemble model graphical interface Select element types and set options Define real constants Define material properties Generate model geometry Mesh geometry Apply boundary conditions Apply loads Run solver batch mode View results graphical interface Deformed shape plot Contour plots X Y data plots OSC
21. erates an area from the overlapping parts of two areas eAdd combines multiple areas into one eSubtract allows you to create voids in a solid area gm Structural Analysis Software OS Applications C Ohio Supercomputer Center 79 Corner Bracket Example ANSYS S MAY 20 1999 14 59 25 ELEMENTS TYPE NUM TsT 3 45 HF 2 5 P fh amp BUFFER e Corner Bracket Structural Analysis Software OSI b Applications d walt Ye Ohio Supercomputer Center 80 vm rs o Structural Analysis Software 7 SC Applications H f Ve Ohio Supercomputer Center al Corner Bracket Example ree Structural Analysis Software OSC Applications A Ohio Supercomputer Center 82 Meshing Element Type Create Mesher Options Material Props e sl lee automatic meshing for first cut Move Modify gt Copy Ji Refine using MeshTool if needed Reflect Check Geom Delete Suggest turning on Accept Reject prompt Update Geom i Define elements in initial mesh Meshing Size Cntris Mesher Opts ea Concatenate Mesh Modify Mesh gt Plot Bad Elms Sel Bad Elens Clear checking Gris Numbering Ctrls Archive Model gt Coupling Geqn gt Cyclic Sector FLOTRAN Set Up MSHAPE Set Element Shape 2D Shape key m se er sl OSC Ohio Supercomputer Center Use Size Controls option to control size of OK 4 lt TET Mesher
22. is Software OSI b Applications d ef WA Ohio Supercomputer Center 19 Moving Regions e mb lt region gt n dx dy dz e lt region gt is defined using the reduced index e nisa flag indicating which coordinate to change X x coordinate xy x and y coord y y coordinate XZ X and z coord Z Z coordinate yz y and z coord xyz X y and z coordinates are to be changed e Only the coordinates required by flag n need be input e dx dy and dz are added to the existing x y z oes Structural Analysis Software Sal b Applications d ei Ge Ohio Supercomputer Center 20 Rotating Regions e rr lt region gt n theta e lt region gt is defined using the reduced index n rx rotate about the x axis n ry rotate about the y axis n rz rotate about the Z axis e theta is the angle in degrees that you wish to rotate oes Structural Analysis Software Sal b Applications d ei Ge Ohio Supercomputer Center 21 Boundary Conditions bi Objects we create on the computer are not infinite in size they have boundaries that define their size Setting the conditions at these boundaries is called applying boundary conditions or B C There are many types of B C displacement pressure temperature velocity etc We are concerned with two types of B C or constraints for our problem displacement movement in the x y or z direction rotation part will rotate about a given point Structural Anal
23. line options Is taurus O g ptf ptf binary plot file d3plot is the default allows 32 bit machine i e Origin read binary files written by 64 bit machine 1 e T90 and T3E e Torun LS TAURUS and read in the default data files ls taurus_o g d3plot e At startup you get 4 windows Visualization Window Phase 1 Menu Viewbox oes Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 37 LS TAURUS Post Processor BAR IMPACT PROBLEM GM CM MICROSEC time 0 00000E 00 EE SCENE EE EE EE SN test a mi Gees Pace are hinn LS TAURUS 940 Aug Structural Analysis Software Applications 38 Ohio Supercomputer Center LS Post Post Processor e New post processor available from LS DYNA e Available on SV1 and Origin Recommend running on Origin better interactive response e There are two important command line options Le poet e At startup you get 1 window FILE gt OPEN select these menus to read in the d3plot file Structural Analysis Software OSI b Applications d f Ohio Supercomputer Center 39 LS Post Post Processor Del Shoal View Wire Feat gel oul Frin Isos Loon Mest Stun Gip Rede Homd Po ae sls Pi e Structural Analysis Software Applications 40 OSC Ohio Supercomputer Center LS DYNA Web Information LSTC web site http www lstc com Official OSC supported softwar
24. n rem Torsional moment of inertia ml Shear deflection const Z SHEARZ eFlements often have properties not defined by node locations Shear deflection const am eOnly elements added in the previous step will appear in the Real ae ol Constants window Added mass unit length ADDMAS HELP button in last window gives very detailed information about Ji the element selected This is an excellent source of information ml sl reel el Structural Analysis Software OS Applications C Ohio Supercomputer Center 76 Material Properties Isotropic eMaterial properties may be linear nonlinear and or anisotropic eMaterial properties are independent of geometry eMultiple material property sets may be defined Select LIST to see what material property sets have been previously defined Structural Analysis Software OSC Applications Ohio Supercomputer Center TI Creating Model Geometry eANSYS interface has many CAD features General procedure Build up basic model with circles rectangles Create more complex areas with lines and splines Refine model with rounding and fillets Subtract combine and or add areas eYou can create points lines areas and volumes Create Structural Analysis Software OSI b Applications Ohio Supercomputer Center 78 Ws ePowertul features that allow you to create complex geometry from simpler objects Modeling Operate Functions eIntersect gen
25. of natural modes and frequencies Transient response via modal superposition Steady state response resulting from harmonic loading Response spectrum analysis Dynamic response resulting from random loading Thermo mechanical sequentially or fully coupled Thermo electrical ePore fluid flow mechanical eStress mass diffusion sequentially coupled Piezoelectric linear only eAcoustic mechanical linear only Structural Analysis Software Sal b Applications ed ef Ge Ohio Supercomputer Center A3 ABAQUS ABAQUS Modeling Features DDT ABAQUS Explicit is designed specifically to serve advanced nonlinear continuum and structural analysis needs The program addresses highly nonlinear transient dynamic phenomena and certain nonlinear quasi static simulations ABAQUS Explicit uses explicit time integration for time stepping and includes the following types of analyses e Nonlinear dynamic stress displacement analysis e Explicit dynamic response with or without adiabatic heating effects e Annealing for multi step forming simulations Material Definitions e Elasticity Linear hyperelasticity viscoelasticity e Plasticity and creep Metal plasticity ductile failure crushable foam brittle cracking brittle failure strain rate dependent plasticity and high strain rate failure Structural Analysis Software OSC Applications d at A Ohio Supercomputer Center 44 ABAQUS Akk RAZII ABAQUS Components DDT Version 5 8 1 5 8
26. options Surface Mesher Program chooses Tet Mesher Program chooses Tet Improvement in VMESH 1 Def E PYRA Hex to Tet Interface Pyramids MSHKEY Set Mesher Key cr Free KEY Mesher Type il v Mapped nenn Midside node key KEY M dside node placement Follow curves pe MSHPATTERN Mapped Tri Meshing Pattern REY Pattern Key Program chooses Accept Reject pronpt Yes If yes a dialog box will appear after a successful neshing operation asking if the mesh should be kept ECH ance Structural Analysis Software Applications SE Loads and Boundary Conditions ANS v5 Apply Displacement KEXPND expand displacements allows the displacement constraint to be applied not only to the nodes that correspond to the picked keypoints but to all nodes between the keypoints as well Structural Analysis Software OSC Applications Ohio Supercomputer Center QA Loads and Boundary Conditions ANS v5 Pressure On Lines By various options pick the line you want to apply the pressure load to Entering different values for VALI and VALJ will apply a linear pressure load between the endpoints of the line Pressure is always positive into the material Structural Analysis Software OSC Applications Ohio Supercomputer Center g5 Loads and Boundary Conditions ANSYS 5 4 MAY 0 1999 16 40 01 LINES TYPE NUM ST 3 05 Il K AF Ge F 1 5 4 BUFFER Structural Analy
27. ots Read Results First Set Rather than a plot appearing a text window will pop up with tabulated data within Next Set Last Set By Load Step By Time Freg File Close List Results PRINT U NODAL SOLUTION PER NODE POST NODAL DEGREE OF FREEDOM LISTING e LOAD STEP 1 SUBSTEP 1 TIME 1 0000 LOAD CASE THE FOLLOWING DEGREE OF FREEDOM RESULTS ARE IN GLOBAL COORDINATES e NODE UY 1 0 57515E 03 2 0 58384E 03 3 0 57659E 03 4 0 57799E 03 0 5 7934E 03 b 0 58068E 03 Fij Structural Analysis Software OSC Applications Ohio Supercomputer Center 93 ISS ANSYS Web Information e ANSYS home page http www ansys com e List of ANSYS documentation http www ansys com ServSupp Library library html e Vendor training http www ansys com Servsupp Training index html e ANALYSIS SOLUTIONS an independent magazine covering design analysis and optimization for ANSYS users http www analysismag com e Downloadable information http www ansys com Download e Official OSC supported software page http oscinfo osc edu software gm Structural Analysis Software OSC Applications Ohio Supercomputer Center 94
28. ples Manual LS TAURUS User s Manual LS POST User s Manual Structural Analysis Software OSC Applications Ohio Supercomputer Center 14 General Analysis Procedure Generate LS INGRID input file with text editor Define mesh loads and constraints Less complex than writing straight LS DYNA input deck Utilities for creating simple cylinders amp blocks Run LS INGRID and generate LS DYNA input deck View mesh Merge coincident nodes Check boundary conditions and applied loads Write out LS DYNA input deck Run LS DYNA solver View results with LS POST or LS TAURUS post processor Reads in binary data files generated by LS DYNA Wide range of display options as well as animation capabilities All calculated properties written to data files you select what to display There are some ascii data files you can look through oes Structural Analysis Software Sal b Applications d ei Ge Ohio Supercomputer Center 15 Model Generation with LS INGRID 7 fundamental concepts Object space Index space Reduced index space Index progression Moving points edges and planes Boundary conditions Defining and applying loads The approach to building a complete model is to break it up into rectangular or cubic blocks of nodes called regions These regions can then be combined to form the complete physical model Structural Analysis Software OSI b Applications
29. rds that follow the MATERIAL option and introduce material behavior relate to the given material until a keyword appears that does not define material properties Boundary conditions BOUNDARY Degrees of freedom e 1 2 3 displacement components e 4 5 6 rotation components e Other variables are available based on element type Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 50 ABAQUS FTTTTTTIII ABAQUS Pre History Data DDT e History data is divided into steps STEP option begins the step END STEP closes the step Keyword optional parameter PERTURBATION e STATIC vs DYNAMIC e Different types of loading CLOAD concentrated load DLOAD distributed load AMPLITUDE keyword option for time varying loads Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 51 ABAQUS ABAQUS Pre History Data DDT Results res file Used by ABAQUS Post for graphical post processing such as deformed shape plots or contour plots Used to restart or continue an analysis Command to request that a restart file be written RESTART WRITE FREQUENCY N OVERLAY ABAQUS will write results to the restart file after each increment at which the increment number is exactly divisible by N and at the end of each step of the analysis OVERLAY parameter is used to specify that only one increment should be retained on the
30. rovides a detailed osus 1 mpp_p s i p OSUB 1 t 700 resource usage report including bo ar ae maximum memory used set x module add lstc cp HOME examples cylinder 8PE pipe dyna IMPDIR e T3E jobs get full use of each Re H node assigned therefore do not Ja E mppdyna np 8 I pipe dyna O pipe out specify any memory limit ja clths cp SHOME examples lsdyna_cylinder_8PE el S DYNA uses MPI on the T3E e Note difference in command line mppdyna np lt np gt lt executable gt lt options gt Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center 33 Running LS DYNA Solver on T3E De Certain LS DYNA runs may produce ASCII output files They are first produced as a series of files EE Jogi dbout 0002 dbout nnnn one for each CPU used in the analysis To assemble the correct output first cat the dbout files and then process the result with dumpdbd cat dbdout gt dbtotal dumpdbd dbtotal This will create the ASCII files glstat elout nodout etc as specified in the LS DYNA input Structural Analysis Software Sal b Applications ed ef Ge Ohio Supercomputer Center 34 LS DYNA Input Deck Parallel Modification Dr To run a parallel LS DYNA job you must modify the input deck LS DYNA3D Keyword file CONTROL_ PARALLEL NCPU NUMRHS ACCU Variable Description NCPU Number of cpus used NUMRHS Number of right hand sides written 0 same as NCPU recommended for
31. rting point for each phase of the analysis Preferences allow you to specify what type of analysis you are performing eThis will mask out unwanted menu items Preprocessor selection brings up the menu on the right Structural Analysis Software Applications 74 OSC Ohio Supercomputer Center Selecting Elements in ANSYS Ge me gt e Elements are first added to the active list Real Constants Attributes Define gt Size Cntrls Mesher Opts Concatenate Hesh Modify Mesh gt Plot Bad Elms Sel Bad Elens Clear Add Options Delete SE Once an element is added you Je sete must also define OPTIONS for the bag particular element type OSC Ohio Supercomputer Center e Material and other physical properties are assigned e During the meshing procedure active elements can be selected Choosing ELEMENT TYPE from the preprocessor window allows you select the element s you want to add Only structural element types are show Library of Element Types Element type reference mmber Ey Structural Analysis Software Applications 75 SYS Element Type Reference No 2 Real Constant Set No Cem Area moment of inertia sel Area moment of inertia ey EEE Thickness along Z axis sl Thickness along Y axis mi Orientation about X axis men Defining Real Constants Defined Real Constant Sets o i Initial strai
32. sis Software OSI b Applications d walt Ye Ohio Supercomputer Center 86 Running ANSYS Solver on T90 AN ys Batch submission file e Environment variables set up aioe oe sees with the module load meer W command OSUB eo SEC X module load ansys Ja command provides a detailed cp HOME examples ansys TMPDIR resource usage report including ja ansys J bracket lt commands txt maximum memory used ge ee cp SHOME examples ansys e Must specify a minimum of 17Mw commands txt e commands txt file contains RESUME the actual commands that are sent aa to the ANSYS program SOLVE FINISH EXIT ALL Structural Analysis Software Sal b Applications ed ef Ge Ohio Supercomputer Center 87 Running ANSYS Solver on Origin ANS v5 Batch submission file e Environment variables set up OSUB r ansys with the module load QSUB 1T 300 OSUB 1M 20Mw command os lt e0 set x e ssusage command provides eS a cp SHOME examples ansys STMPDIR resource usage report including ssusage ansys j bracket lt commands txt Sg cp SHOME examples ansys maximum memory used e commands txt file contains the actual commands that are sent commands txt to the ANSYS program RESUME SOLU CHECK SOLVE FINISH EXIT ALL Structural Analysis Software Sal b Applications d ef Ye Ohio Supercomputer Center QQ ANSYS Postprocessing ANSYS e After batch job completes review log file for errors
33. tures LS DYNA Components LS DYNA Documentation Model Generation with LS INGRID Running LS DYNA Solver on T90 amp SV1 Running LS DYNA Solver on T3E Running LS DYNA Solver on Origin LS TAURUS Post Processor LS POST Post Processor Structural Analysis Software OSC Applications Ohio Supercomputer Center 11 LS DYNA Modeling Features Nonlinear dynamics Rigid multi body dynamics Quasi static simulations Thermal analysis Fluid analysis Eulerian capabilities ALE Arbitrary Lagrangian Eulerian Fluid structure interactions FEM rigid multi body dynamics coupling MADYMO CAL3D OSC Ohio Supercomputer Center Crack propagation Real time acoustics Design optimization Implicit springback Multi physics Structural thermal coupling Adaptive remeshing Failure analysis Underwater shock Structural Analysis Software Epe LS DYNA Components Pre Processor LS INGRID Solver LS DYNA Cray SV Cluster Post Processor LS TAURUS Post Processor LS POST Cray SV m Structural Analysis Software OS Applications C Ohio Supercomputer Center 13 LS DYNA Documentation Ur e Documentation is available on line in Adobe pdf format http oscinfo osc edu software Click on Origin 2000 Click on LSDYNA Manuals are the same for all platforms LS DYNA User s Manual Structural version LS DYNA User s Manual Keyword version LS DYNA Theory Manual LS INGRID User s Manual LS INGRID Exam
34. ysis Software OS Applications Ohio Supercomputer Center 66 ANSYS Package ANSYS Modeling Features ANS YS Components ANSYS Documentation Model Development Running ANSYS Solver on T90 Running ANSYS Solver on Origin ANSYS Post Processing Structural Analysis Software OS Applications C Ohio Supercomputer Center 67 ANSYS Modeling Features ANSYS Nonlinear and linear analysis Materials Structural Plasticity static dynamic buckling kinematic Hyperelasticity Thermal Viscoplasticity steady state transient phase change radiation Viscoelasticity Acoustics Creep swelling Coupled field oTemperature dependent properties BE TE EE Phase change via enthalpy Acoustics structural Elements Thermal electric Quadrilateral triangle mixed quad triangle Bezeli mapped brick and tetrahedral Cables and compression only spars Surface to surface contact w friction Node to node contact with friction Cracking and or crushing solids Element birth and death Substructuring for linear regions Thermal electric shell oes Structural Analysis Software Sal b Applications d walt Ye Ohio Supercomputer Center 68 ANSYS Components ANS e Solver Pre and Post processor are integrated into one package e Preprocessor Motif based windows look and feel Cascading pull down menus Qnline documentation and hyper text linked help Automatic FE mesh g
35. ysis Software OSI b Applications d ef WA Ohio Supercomputer Center 272 Boundary Conditions ile e The command is b and it goes between the start and end of a part description but after the index and object space lines e b lt region gt n lt region gt is defined using the reduced index e nisa6 digit binary number Ist digit x displacement O free fixed 2nd digit y displacement 3rd digit z displacement 4th digit x rotation Sth digit y rotation 6th digit z rotation oes Structural Analysis Software Sal b Applications d ei Ge Ohio Supercomputer Center 23 Applied Loads There are 2 steps to applying a load Define the load curve Apply the load to a given part Load curve gives the magnitude of the force over time The load curve is defined before the first part 1s defined Command lcd load npts tl forcel t2 force2 where load is the load curve number npts is the number of time force data points t1 tn are the time points forcel forcen are the force values Structural Analysis Software Sal b Applications d sf WA Ohio Supercomputer Center 24 Applying the Load Curve to a Part De e The load curve is applied between the start and end of a part definition e Command fc lt region gt load mult lt direction gt where lt region gt is defined using the reduced index load 1s the load curve number mult is a multiplier say if you want to double the
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