PASCO Specialty & Mfg. ME-8236 User's Manual
Contents
1. A Cast Beam consists of a beam that is a model of the reinforcement bars rebar used in construc tion and a mold that is used to produce a model of a beam of reinforced concrete or prestressed concrete A mixture of fine sand plaster and water is poured into the assembled rebar beam and mold After the mixture hardens and the mold is removed the beam can be used as a 4 beam in any PASCO Structure Set or tested on the Materials Testing Machine The illustration shows a Cast Beam with the Materials Test ing Machine and the Four point Load Anvil attached to the Bending Accessory PASCO MATERIALS FOUR POINT LOAD ANVIL FOR USE WIT FOR USE WITH ME 237 ME 8249 z 2 gt i titil AAPA REALE Eda wih 10 012 13762D Operation Photoelastic l Beams ME 7011 The Photoelastic I Beams are similar to the 3 I Beams and 4 I Beams that are part of the PASCO Structures Systems such as the Truss Set ME 6990 However the Photoelastic I Beams differ in that they are clear polycarbonate plastic and do not have any holes in the web area of the beam They can be mounted on the Materials Testing Machine using the Materials Structures Beam Adapter When viewed with the Materials Photoelasticity Accessory the distribution of stress in the beams can be studied The set includes twenty four each of the two sizes of I beams The 3 I Beam is 11 5 cm lo2. Sample Labs and then download the ZIP file for Lab 02 Information covered in the Compliance Calibration Tutorial includes e How a compliance calibration works e How to create save and delete calibrations e Hints and practice in making an accurate calibration Reason for Calibration The reason for the compliance calibration procedure 1s this if the Materials Testing Machine were perfectly rigid it would give completely accurate measurements of force and displacement However the Machine is not perfectly rigid To correct for the fact that the Machine flexes slightly the stiffness of the Machine is characterized and a calculation is performed in the software to adjust the raw position data and compute the displacement that is due only to the distortion of the sample being tested The compliance calibration infor mation for the Machine can then be stored within the Machine or stored in a Capstone file The calibration rod will not change shape significantly under tension or compression This means that any displacement measured when the calibration rod is used is due to the flex ing of the Materials Testing Machine itself BGR6 22 4G0 KAe iY lhe xX ole 0 00010 0 00005 0 00000 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 6500 7000 Force N For example the sample graph shows that the Machine flexes 0 2 mm per 3 500 newtons of force when the calibra tion rod is stretch
3. a hardness greater than mild steel 0 130 O 3 3mm O 0 099 Mounting Use the two mounting screws and the included hex key allen wrench to attach the back piece of the Materials Shear Accessory to the top of the load cell Note that when the front piece is raised by hand as far as it will go the holes in the front piece align with the matching holes in the back piece Insert the test sample through the pair of holes that best match the diameter of the sample Use a sample that is long enough so that it extends about 1 4 6 mm beyond the front and back pieces Doing this makes it easier to remove the sample remnants from the accessory after the test 012 13762D 7 Materials Testing Machine Figure Materials Shear Accessory Adjust the position of the load bar so that it rests on the top surface of the front piece Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material on the front and back of the Load Bar Adjust the position if needed Materials Photoelasticity Accessory ME 8241 Clear plastic samples that are viewed through crossed polar izers reveal patterns of different colors that show stress dis tribution The Materials Photoelasticity Accessory is designed to demonstrate the photoelastic phenomenon in clear plastic samples The Accessory consists of two rectangles of polarizer mate rial that can be attached to the Velcro loop ma
4. as part of the Capstone file k Finishing Step Back Finish Cancel NOTE The Calibration window goes back to Step One When you click Next the Choose Calibration Action window Step Two will show a menu of the saved and or stored calibration s e Click Use Calibration and select a specific saved calibration from the pull down menu below User Calibrati on or click 2 Choose Calibration Action Import Calibration From Sensor to load a selected stored calibra lao ae aE a tion from the pull down menu below Import Calibration From Create New Calibration Sensor Use Calibration 7000 N cal Tue Dec 17 11 37 30 2013 e Click Finish The Calibration window goes back to Step One import Calibration From Sensor e Click the Calibration icon in the Tools palette to close the Cali ashi bration window Save the Capstone file for future use os LEE TEU ELLIE Manage Existing Calibration Back Finish Model No ME 8236 Appendix A Calibration e From the File menu save the Capstone file for future use File Edit Workbook Display Journa B New Experiment Ctri N Open Experiment Ctri O Save Experiment Ctri S Save Experiment As Preferences Import Data Export Data Recent Experiments Print Page Setup Print Prewiew Print Ctri P Exit ByWyevee 0921876200 tT Materials Testing Machine Appendix B Seating a Test Sampl
5. fixed jaw as this might bend the coupon Turn the upper clamp so that it is aligned with the lower clamp Adjust the position of the load bar so that you have room to carefully put the other end of the coupon between the jaws of the upper clamp Keep the movable jaw aligned with the fixed jaw so that the coupon does not twist or bend Once again tighten the hex nut PASC Oi Operation Hold the upper clamp so it remains parallel to the lower clamp and tighten the sample nut slightly to remove any slack in the coupon Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material on the front and back of the Load Bar and adjust the position of the shields if needed Materials Shear Accessory ME 8239 The Materials Shear Accessory consists of two pieces of hardened steel a front piece and a back piece held together by a pair of permanent screws and a package of Materials Shear Samples The front piece can slide vertically relative to the back piece which is designed to be mounted on the load cell using an included hex key allen wrench The two pieces have pairs of matching holes with four different diam eters to fit a variety of samples for testing The hole diame ters are approximately 1 16 3 32 1 8 and 5 32 The Materials Shear Samples includes three 1 8 diameter rods each of three metals aluminum brass and mild steel NOTE Do not use a sample with
6. is to be used select it in the Calibration window Start data recording Turn the crank in a clockwise direction to apply a tension force to the tensile sample Observe the graph display of force and position Note that the default for the Materials Testing Machine in the software shows force and position as negative when a tension force is applied See Appendix A for information about changing signs When the sample breaks or is stretched the maximum amount stop data recording Materials Bending Accessory ME 8237 The Materials Bending Accessory includes a plunger a adjustable support anvils and a small hex key allen wrench The plunger is mounted on the bottom of the load 6 012 13762D Operation bar using the sample nut The base for the adjustable anvils is screwed onto the top of the load cell The spacing between the two triangular support anvils can be adjusted Use the hex key to loosen the screws holding the anvils and slide them closer together or farther apart Tighten the screws securely Use the sample nut to secure the plunger in place on the load bar Remove the screws from the base for the anvils and align the base on top of the load cell Use the screws and the hex key to fasten the base in place Place a sample for testing on the two support anvils Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material on the front and back
7. nut onto the top of the calibration rod Load Bar Round Nut AA s Ld AA SZI S59 A SRR oS LLLI A 7 eats SS SSS Load Bar crosshead LSS 4 KS xXx A7 recat Soon SORRELL eM 22 4 Sx Z5 S 29 S RELL 7 BSS SOS res SS y Ko oS bs eX Calibration Figure Mount Calibration Rod for Tension Mount the Calibration Rod for Compression To mount the calibration rod for compression screw the short threaded end of the rod into the top of the load cell Screw the calibration nut onto the top threaded part of the calibration rod until the nut is at the bottom of the threaded PASC Oi Operation section Lower the load bar until the bottom of the load bar rests on the top of the calibration nut RASA SY SELES AA lse 2S2 4 Load Bar crosshead SIS SRK SSNS PAZIA BESS RS QU VKAAAS ROS ss lS XXX XXX AA 3 SS Calibration Figure Mount Calibration Rod and Nut for Compression Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material on the front and back of the Load Bar Adjust the position of the shields so that they will block any fragments that may come from the calibration rod in case it accidentally breaks Prepare to Record Calibration Data Connect the plug on the sensor cable into a PASPORT inter face such as the USB Link included in the Materials Test ing Sy
8. the Materials Testing Machine on the Storage Base Put the washers on the screws and put one screw through a hole in the base of the Materials Testing Machine Align the screw with the threaded hole in the Storage Base and tighten the screw using your fingers Put the other screw through the base and align it with the other threaded hole Use a 7 16 inch 11 mm wrench to tighten the screws in place Use C clamps to fasten the Storage Base to a sturdy table or bench An option is to bolt the Machine directly to a table or bench as shown The Storage Base has through holes at each of its corners Bolt Storage Base C clamp Sturdy support Items not included Calibration Setup The calibration rod and nut can be used for calibrating the Materials Testing Machine for compression or tension The 4 012 13762D Operation PASCO Capstone data collection software includes a cali bration wizard that allows the calibration information called a compliance calibration for the Materials Testing Machine to be stored for later use PASCO Capstone is pro vided in the ME 8230 Materials Testing System Lab 02 Compliance Calibration Tutorial NOTE A PASCO Capstone workbook file about compliance calibration is available to download from the PASCO web site Go to Wwww pasco com and enter Materials Testing System in the Search window In the web page that opens select Materials Testing System Click
9. Instruction Manual 012 13 762D Materials Testing Machine ME 8236 Part of the Comprehensive Materials Testing System ME 8244 WARNING Provide proper eye protection when using the Materials Testing Machine or its Accessories Operate the Materials Testing Machine behind protective Safety Shields Velcro Loop Material Load Bar crosshead Velcro Hook Material Safety Shield 2 Sensor Cable Materials Testing Machine Calibration Load Bar Round Nit Rod and Nut D A i To 1 916 786 3800 800 772 8700 support pasco com www pasco com Materials Testing Machine Materials Testing Machine ME 8236 Included Items Calibration Rod and Nut Included Items Materials Testing Machine Load Bar Round Nut Safety Shield 2 Required Items PASCO Interface PASPORT compatible PASCO Capstone Data Collection Software See the PASCO catalog or web site at WWW PASCO COM Materials Testing System ME 8230 The Materials Testing System includes the items in the Materials Testing Machine PLUS an interface software and sixty tensile samples as shown in Table 1 Table 1 Materials Testing System Model Materials Testing System toms Tensile Sample Annealed Steel 10 Comprehensive Materials Testing System ME 8244 The Comprehensive Materials Testing System includes all the items in the Materials Testing System shown in Table 1 PLUS the accessories and other items s
10. arrow The previously saved compliance Use Calibration calibration 7000 N cal Tue Dec 17 11 37 30 2013 is shown as 7000 N cal Tue Dec 17 11 37 30 2013 an example If you select a previously saved compliance calibra Import Calibration From Sensor tion from the pull down menu it becomes the active calibration Empty Calibration 2 When you click Finish the selected calibration will be used to Use Raw Values make the compliance correction to any future data you collect _ Manage Existing Calibration Materials Testing Machine e Import Calibration From Sensor If any compliance calibrations have been stored in the Materials Testing Machine the Sensor they will be displayed in the pull down menu The stored calibra tion 7100N 100N pre Tue Feb 25 is shown as an example If you click Finish the selected stored calibration will be imported and added to the list for use It will also become the active cali bration NOTE Calibrations stored in the Material Testing Machine the Sensor can not be used or renamed until they are imported e Use Raw Values If this choice is selected and you click Finish the selected compliance calibration if any is temporarily dis abled Any future data collected will not be adjusted NOTE The calibration is still saved e Manage Existing Calibration If this choice is selected and you click Next Step 3 is revealed as shown in the illustration Your choi
11. ces are Delete Calibration Rename Calibration or Save Cali bration in Sensor the Materials Testing Machine e If you wish to delete a calibration select the calibration you want to delete from the pull down menu and then select Delete Calibra tion Click Finish to delete the calibration e Ifyou select Rename Calibration the default choice and click Next a text window opens and you can enter a new name for a calibration ADVICE Create a name that includes the maximum force used It is also helpful to record any pre load that is used Click Finish after entering a name e Ifyou select Save Calibration in Sensor and click Next the win dow shows Store Calibration and Choose which calibration to overwrite The default view of the pull down menu shows Empty Calibration 0 If you click Finish the calibration you wish to store will take the place of Empty Calibration CAUTION Only four calibrations can be stored in the Materials Test ing Machine If you already have four calibrations stored and you wish to store another calibration you will be prompted to select which cali bration you want to replace NOTE You can have any number of calibrations saved as part of the Capstone file When you name your calibration as in Step Six Name the calibration see below create a name that includes the maximum force used It is also helpful to record any pre load that is used When the saved Ca
12. ch the other part of each clamp PASC Os Model No ME 8236 Screw the clamp with the short threaded end into the top of the load cell and put the other clamp through the hole in the load bar Use the sample nut to secure the clamp to the load bar Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material on the front and back of the Load Bar Adjust the position if needed MTS Clevis Clip ME 8245 The Materials Testing System Clevis Clip is designed to ten sile test a wide variety of samples that have hooked ends or through holes The diameter of each clevis pin is 0 187 in 0 47 cm Each pin contains a pair of small spring loaded spheres near its end to keep the pin from slipping out of the clip The Clevis Clip with the longer threaded section is mounted in the Load Bar of the Materials Testing Machine and the Clevis Clip with the shorter threaded section and the hex nut is mounted in the top of the Load Cell W H eT i MN iji Sa j NN Tit ety E Kh WA NMA thit HNH ul halt EAR ie iH A A gt 5 P y 4 VSL LLL Tad PL NH ANI ailh LALO Re RR Reb BREE PASC Oi Operation Remember to attach the two safety shields to the Load Bar MTS 10 32 Adapter ME 8246 There are several devices used in material testing that hold materials in place and have a threaded 10 32 hole designed fo
13. e and Setting a Pre Load Appendix B Seating a Test Sample and Setting a Pre Load In the following procedure a test sample is stretched and relaxed to properly seat the sample remove any slack and a pre load is set Seat the Sample 1 Ta Mount a test sample onto the Materials Testing Machine Make sure that the Load Bar Round Nut is slightly loose and not applying a force on the test sample In the Capstone software set up a Graph display of Position versus Force and a Digits display of Force Click Record NOTE If the position and force data on the graph are not zero check the Properties window in the Hardware Setup panel The check box for Zero Sensor Measurement at Start should be checked Turn the crank clockwise about a quarter of a turn and note that the position and force data are being plotted on the Graph display With data still being recorded slowly turn the crank back counter clockwise Watch the Digits display and turn the crank to reduce the force to between 10 and 20 N Don t let the force go back to zero Turn the crank clockwise to increase the force as before Notice how the second plot of data looks on the graph compared to the first If the second plot of data tracks on top of the first plot then the sample is properly seated and you can click Stop Zf not repeat the process of applying force and then unloading the force NOTE Usually it is necessary t
14. e is a positive value for both position and force when the Load Bar is moving down as in a compression Properties Sensor Name Default Sample Rate Maximum Sample Rate e If you want positive values for both position and force when Minimum Sample Rate the Load Bar is moving up as in tension click the check box Sensor Model Number for Change Sign Sensor ID Change Sign p 66 z 99 e Click OK to close the Properties window E E amano re aa Fi Zero S N e Click the Hardware Setup icon to close the Hardware S dlate A Setup window Remove Sensor zero Offset Remove Sensor Zero Offset Prepare to use the software to calibrate the Material Testing Click on an item for a brief description Machine Model No ME 8236 Appendix A Calibration Calibration Procedure The following steps describe how to use the calibration wizard in PASCO Capstone to create a compliance calibration for the Materials Testing Machine Please preview the steps to become familiar with the procedure before doing the calibration Step One Choose the Type of Measurement to Calibrate In the Capstone software select the Calibration icon in the Tools palette to open the Calibration window Calibration dTa Choose the type of measurement you would like to There are two types of calibration for the Materials Testing Machine F calibrate One is a simple calibration of the force measured b
15. ed If you use the Machine to stretch a material sample then the flex amount of 0 2 mm per 3 500 N would need to be subtracted PASC Os Model No ME 8236 Creating the Compliance Calibration Information In the software a polynomial curve fit is applied to the plot of position versus force data The coefficients of the polyno mial curve fit are saved as the calibration information Once the compliance calibration is created for the Machine the software automatically subtracts the amount of flex from the raw data After the calibration information is stored in the Machine it cannot be edited However it you make a new calibration it will replace the stored calibration data Saving the Calibration Information The calibration information can be saved in two ways in the Capstone file or in the Materials Testing Machine itself If the calibration information is saved in the Capstone file it can be used with any Materials Testing Machine If the cali bration information is stored in the Materials Testing Machine the information stays with that unit even when it is unplugged and can be used with any Capstone file in the future Mount the Calibration Rod for Tension To mount the calibration rod for tension screw the short threaded end of the rod into the top of the load cell Lower the load bar until the threaded part at the top of the calibration rod goes through the hole in the load bar Screw the load bar round
16. hown in Table 2 2 012 13762D Introduction Table 2 Comprehensive Materials Testing System Settee TE System Items AP 8217A Replacement Test Coupons Full Set con sists of the AP 8222 Plastic Coupons and the AP 8223 Metal Coupons Introduction The PASCO Materials Testing Machine is a device for mea suring force and displacement for various materials as the materials are stretched compressed sheared or bent The Materials Testing Machine has a built in load cell strain gauge transducer capable of measuring up to 7100 newtons N of force 1600 pounds and an optical encoder module that measures displacement of the load bar A crank and gear system raises or lowers the load bar on two leadscrews also known as power screws or translation screws Force data from the load cell and displacement data from the encoder module can be recorded displayed and analyzed by a PASCO Interface with PASCO Data Collection Software The sensor cable from the Materials Testing Machine con nects to a PASPORT input port See the PASCO catalog or web site at www pasco com for more information about PASCO interfaces and data collection software PASC Ce Model No ME 8236 Included Equipment The Materials Testing Machine ME 8236 includes a cali bration rod and nut a load bar round nut and a pair of safety shields with Velcro hook material Calibration Rod and Nut Load Bar Round Nut Safety Shields e The calibrati
17. ng and the 4 I Beam is 17 cm long Thin l Beams ME 7012 The Thin I Beams set consists of 48 thin I Beams of two sizes 3 Beam 24 and 4 Beam 24 The beams are like those in the PASCO Structures Systems but there are no holes in the web area Therefore when used with the Materi als Testing Machine the test results are more like the results would be for the type of metal I Beam used in construction 4 Beam Maintenance Regular maintenance for this equipment is minimal The leadscrews need to be kept clean and they may need to be re lubricated at some point Use a food grade anti seize grease containing PTFE polytetrafluoroethylene commonly known as Teflon If problems arise with the Materials Testing Machine notify PASCO scientific It is not recommended that you attempt to fix this equipment yourself See the Technical Support information at the end of this manual Specifications ten poen Load Cell capacity 7100 N 1600 Ibs Load Cell maximum 100 of capacity Experiment Guide NOTE An Experiment Guide in electronic format is avail able to download from www pasco com The Experiment Guide includes information about the calibration procedure and also describes the available Capstone Workbook files for the Materials Testing Machine Enter Materials Testing System in the Search window and look for the downloadable file s under User Resources The list of Capstone Workbook files for
18. o load and unload the system several times to remove all the slack and seat the test sam ple When two consecutive plots of data track on top of each other the test sample is properly seated Click Stop Set a Pre Load 8 18 Click Record to begin collecting data and increase the force back up to 100 N Click Stop and DO NOT change the crank position Since the Materials Testing Machine is set to automatically zero itself the next time you start recording data this puts a pre load of 100 N on the sample which results in better data 012 13762D PASL Oi
19. of the Load Bar and adjust the position of the shields if needed Apply a Force Turn the crank counterclockwise to apply a compression force through the plunger onto the sample m m sample Load Bar R Nut crosshead f Sample Anvil OC a a ME8237 PART 1 OF 2 Base Cell Figure Materials Bending Accessory Materials Coupon Adapter ME 8238 The Materials Coupon Adapter includes two coupon clamps a tee handle and a 3 8 socket 12 point One clamp fits in the load cell and the other fits in the load bar They can be used to mount a plastic coupon AP 8222 or metal coupon AP 8223 onto the Materials Testing Machine for testing of tensile strength PASC Os Model No ME 8236 Loosen but do not remove the hex nut on each clamp The jaws of the clamp are spring loaded so the moveable jaw will separate from the fixed jaw Screw the clamp with the shorter threaded section into the load cell Put the threaded section of the other clamp up through the hole in the load bar and use the sample nut to hold the upper clamp NOTE Do not completely tighten the sample nut yet Figure Materials Coupon Adapter Carefully place one end of a coupon between the jaws of the bottom clamp While holding the moveable jaw to keep it aligned with the fixed jaw use the tee handle and socket to tighten the hex nut CAUTION Each coupon is fragile Do not let the moveable jaw twist out of alignment with the
20. on rod and nut can be used to determine how much the Machine itself flexes as force is applied either in tension or in compression e The load bar round nut is used to connect one end of a tensile sample to the load bar for example or can be used to attach an accessory or adapter to the bottom side of the load bar e The safety shields attach to the Velcro loop material on the front and back of the load bar Materials Testing System The Materials Testing System ME 8230 consists of the Materials Testing Machine plus a PASPORT interface called the USB Link PASCO Capstone Software and sixty tensile samples The USB Link connects the sensor cable of the Materials Testing Machine to a USB port on a computer The PASCO Capstone software records displays and analyzes the data from the Materials Testing Machine The software 1s avail able as an automatic digital download from PASCO The tensile samples include four metals aluminum brass annealed steel and steel and two plastics acrylic and poly ethylene for tensile strength testing There are ten samples for each material Tensile Sample Information All the tensile samples ME 8231 through ME 8235 and ME 8243 have an overall length of 90 millimeters mm or 3 5 inches The center section of each sample has an approx imate diameter of 3 3 mm or 0 131 inches The threaded ends are metric M12 x 1 75 31 7 mm _ diameter 3 3 mm M12 x 1 75 The tensile
21. orkbook file about compliance calibration is available to download from the PASCO web site Go to www pasco com and enter Materials Testing System in the Search window In the web page that opens select Materials Testing System Click Sample Labs and then download the ZIP file for Lab 02 Information covered in the Lab 02 Compliance Calibration Tutorial includes e How a compliance calibration works e How to create save and delete calibrations e Hints and practice in making an accurate calibration Optional Change Sign NOTE The default for the Materials Testing Machine in the software is a negative value for force and position as negative when a tension Materials Testing Machine icon force 1s applied Although it is possible to use the Materials Testing Machine with negative values for force and position it is easier to change the sign convention to be positive while you use the Calibra tion Wizard for the calibration procedure Properties icon e To change the sign for the force and position data click the Hard _ ware Setup icon in the Tools palette lal Materials Testing System ME 8230 Properties be e Inthe Hardware Setup window click the Properties icon shaped RS A like a gear wheel to open the Properties window for the Materi als Testing Machine e In the Properties window note that the default for the Change Sign is an un checked box This means ther
22. peration Caution Be sure to wear adequate eye protection when using the Materials Testing Machine or its accessories Operate the Machine from behind a protective shield Basic operation involves mounting the Materials Testing Machine firmly to a sturdy support calibrating the Machine mounting the item to be tested onto the Materials Testing Machine connecting the Materials Testing Machine to an 012 13762D 3 Materials Testing Machine interface for data recording and then turning the crank to apply tension stretching compression squeezing bend ing or shearing cutting forces to the test item ME 8229 MTS Storage Base Secure the Materials Testing Machine There are two holes through the base of the Materials Testing Machine that can be used for bolting the Machine to a sturdy support The two 6 millimeter mm diameter holes are 15 centimeters apart one on either side of the label ER SIC o Bolting the Machine will avoid the problem of the Machine moving during a sample test The Materials Testing System Storage Base ME 8229 is designed for two purposes pro vide a sturdy base to which the Materials Testing Machine can be bolted and serve as a storage place for accessories tools and other items in the Comprehensive Materials Test ing System The Storage Base includes two screws and two washers and has two threaded holes that match the spacing of the holes in the Materials Testing Machine base Place
23. providing the reproductions are used only in their laborato ries and classrooms and are not sold for profit Reproduction under any other circumstances without the written consent of PASCO sci entific is prohibited Trademarks PASCO PASCO Capstone PASPORT SPARK Science Learning System SPARK SLS and SPARKvue are trademarks or registered trademarks of PASCO sci entific in the United States and or in other countries For more infor mation visit www pasco com legal Product End of Life Disposal Instructions This electronic product is subject to disposal and recycling regulations that vary by country and region It is your responsibility to recycle your electronic equipment per your local environmental laws and regulations to ensure that it PASC Oi Technical Support will be recycled in a manner that protects human health and the environment To find out where you can drop off your waste equipment for recycling please contact your local waste recycle disposal service or the place where you pur chased the product The European Union WEEE Waste Elec tronic and Electrical Equipment symbol to the right and on the product or its packaging indicates that this product must not be disposed of in a standard waste con tainer 012 13762D 11 Materials Testing Machine Appendix A Calibration Appendix A Calibration General Information Pre Calibration Lab 02 Compliance Calibration Tutorial REMINDER A PASCO Capstone w
24. pstone file is re opened the calibrations will still be avail able Appendix A Calibration 2 Choose Calibration Action Create New Calibration s p J aaa i e eo WSe _allDradio O Import Calibration From Sensor 7100N 1OON pre Tue Feb 25 13 28 54 2014 F100N LOON pre Tue Feb 25 13 28 54 2014 1O00Ncomp20Npre Tue Feb 25 17 32 05 2014 Empty Calibration 2 Empty Calibration 3 Finish Cancel 3 Manage Existing Calibration 7000 N Tue Dec 17 10 57 49 2013 Delete Calibration Rename Calibration Save Calibration In Sensor 4 Rename the calibration Calibration Back Finish Delete Calibration Rename Calibration Save Calibration In Sensor 4 Store Calibration Choose which calibration to overwrite Empty Calibration 0 Back Finish Cancel e After you have made your Calibration Action choice REMINDER Create New Calibration is the default click Next to show the illustration in Step Three Install the calibration rod 14 012 13762D PASC Os Model No ME 8236 Step Three Install the Calibration Rod The calibration wizard changes to show an illustration about how to install the calibration rod In addition to the illustration a Graph display of Position m versus Force N opens A Digits display of Force N is part of the Graph dis play DEFA DE A FERAE Mk EX Glee Position 7 Position m Digits display of Force N Fo
25. r mounting the device on a materials tester such as the Materials Testing System The Materials 10 32 Adapter is designed to connect devices with a threaded 10 32 hole to the Load Bar and Load Cell of the Materials Testing Machine The 10 32 Adapter with the longer larger diameter threaded section is mounted in the Load Bar of the Materials Testing Machine and the 10 32 Adapter with the shorter threaded section and the hex nut is mounted in the top of the Load Cell MTS Compression Accessory ME 8247 The Materials Compression Accessory is designed to work with the Materials Testing Machine to compress samples The Compression Accessory consists of two one inch 2 54 cm diameter platforms that provide a sturdy base for com pression samples The Materials Compression Accessory includes twenty Materials Compression Samples ME 8248 The polyeth ylene cylinders are approximately 0 5 in 1 3 cm in diameter and 0 75 in 2 cm long MTS Four point Load Anvil ME 8249 The Materials Four point Load Anvil extends the capabili ties of the Materials Bending Accessory When used with the Bending Accessory and the Materials Testing Machine data to find the flexural plastic modulus and the modulus of rup 012 13762D 9 Materials Testing Machine ture of tested samples can be measured recorded and ana lyzed Cast Beam Spares Kit ME 6983 The Cast Beam Spares Kit includes 30 Rebar members and 10 molds
26. rce N e Click Next to show Step Four Record a smooth data run Step Four Record a Smooth Data Run NOTE To make a calibration that will accurately correct for compli ance it is necessary to calibrate the Materials Testing Machine over the same range of force and the same conditions you expect to use when you are testing your samples e Click Record and collect a smooth run of position versus force data e When the data collection is finished click Stop REMINDER If the run of data is not smooth delete the run and try again NOTE A Polynomial curve fit is automatically applied to the run of position versus force data e Click Next to open Step Five Polynomial Fit 012 13762D FASC Qi Appendix A Calibration Install the calibration rod install the calibration rod into the Materials Testing System as shown in the figure below Cancel Record a smooth data run Back Record Position ws Force data over the range for which you want the unit calibrated When you get a smooth run of data proceed to the next step Next Cancel Position versus force data Polynomial A Bx Cx A 0 00 1 205x10 7 T 700x10 11 1 66x10 14 91x107 853x10 23 GOX RMSE 9 65x10 7 Polynomial curve fit 15 Materials Testing Machine Appendix A Calibration Step Five Polynomial Fit Palynomial Fit NOTE By default the Show Curve Fi
27. samples can be ordered separately PASC Oi Materials Testing System The table shows typical values Table 3 Typical Values Tensile Strength Young s Modulus Brass 360 500 MPa Steel 1018 Accessories Material 400 MPa Aluminum 2024 T3 Table 2 lists accessories and adapters that are included in the Comprehensive Materials Testing System and are available separately for the Material Testing Machine Other accessories and adapters are being developed Replacement Items Also available separately are replacement items such as the previously mentioned Tensile Samples the Materials Shear Samples ME 8240 with nine metal rods three each of alu minum brass and steel the Plastic Coupons AP 8222 with ten samples each of four different plastics the Metal Coupons AP 8223 with ten samples each of five different metals and the MTS Compression Samples ME 8248 About This Manual The manual describes the basic setup of the Materials Test ing Machine and the accessories and replacement items included in the Comprehensive Materials Testing System It also describes the procedure for calibrating the Materials Testing Machine using the included calibration rod and nut Experiment Guide NOTE An Experiment Guide in electronic format is available to download from www pasco com Enter Materials Testing System in the Search window and look for the downloadable file s under Resources O
28. stem Connect the interface to a USB port on a computer Sensor Cable Plug See Appendix A for details of the Calibra tion Procedure After the Calibration Procedure is com plete return to this point Mount a Tensile Sample Select a tensile sample to mount onto the Materials Testing Machine Put the end of the sample with the short threaded section into the threaded hole in the top of the load cell Screw in the sample until the top edge of the short threaded section is flush with the top of the load cell 012 13762D 5 Materials Testing Machine Lower the load bar so that the longer threaded section of the sample goes up through the hole in the center of the load bar Adjust the load bar until the bottom edge of the longer threaded section is flush with the bottom of the load bar While holding the tensile sample so it does not turn screw the sample nut onto the longer threaded section until the sample is held tightly in place Load Bar Sample Nut Load Bar crosshead Material for Safety Shield Tensile Sample Figure Mount Tensile Sample Attach the Safety Shields Attach the Velcro hook material on the two safety shields to the Velcro loop material on the front and back of the Load Bar Adjust the position of the shields so that they will block any fragments that may come from the sample Record Data Prepare PASCO Capstone software to record data If there is a stored calibration file that
29. t Editor window is open in the Polynomial Fit window The Curve Fit Editor window shows the Apply a polynomial curve fit to the data In the default values for the coefficients of the polynomial Curve Fit Editor you may change the number of coefficients and lock coefficients to specified l values You may also add a selection to restrict In the Curve Fit Editor window you can change the Number of Terms the data points used to determine the enter an Initial Guess for each coefficient and lock or unlock a coeffi polynomial curve fit A Show Curve Fit Editor cient value e Ifthe message Curve fit was successful is shown click Next to Polynomial A Bx Cx open Step Six Name the calibration a NOTE If the curve fit was not successful use trial and change in the Number of Terms 6 1 Curve Fit Editor to adjust the coefficients until the curve fit is successful Click Update Fit to determine if the new coefficients made a better Initial Guess Lock Current Value curve fit F 0 00 2 05x1 0 7 7 00x1 0 4 1 66x10 4 1 91x1 0 18 HS2 MSE g 31x10713 RMSE g 63X107 Curve fit was successful k Reset Update Fit Cancel Back Next Cancel Step Six Name the Calibration os 6 Name the calibration e Type a name for the calibration in the text area Example names might be Calibration 7000 or Tension Calibration e Click Finish to store the calibration
30. terial on the Load Bar of the Materials Testing Machine Hook gt Material 8 012 13762D Operation To place the polarizers on the Load Bar align a polarizer with the strips of loop material on the front of the Load Bar and press the edges of the polarizer so that the hook material adheres to the loop material Repeat the process with the sec ond polarizer on the other side of the load bar Sor Figure Polarizers on Load Bar Place a light source so that it shines through the polarizers from behind Materials Structure Beam Adapter ME 8242 The PASCO Structures System includes a variety of beams that can be used with the Materials Testing Machine The beams are models of I beams and other structure elements The Materials Structure Beam Adapter is designed to hold a structures beam so that it can be tested under tension and compression The Materials Structures Beam Adapter consists of two clamps and an included hex key Each clamp has two jaws one of which can be removed so that an end of a structures beam can be put in the clamp The threaded ends of the two clamps fit in the load bar and load cell of the Materials Test ing Machine Clamp for Load Cell Figure Materials Structures Beam Adapter Use the included hex key to remove the screws that hold the two parts of the clamp together Put the ends of a structures beam such as a 3 I Beam into one part of each clamp and then use the screws to reatta
31. the Materials Test ing Machine includes the following Each lab is available as PASC Os Model No ME 8236 a downloadable ZIP folder containing a PDF setup file and a Capstone data file Sample Labs e Lab 01 Intro to Materials Tester e Lab 02 Compliance Calibration Tutorial e Lab 03 Tensile Testing Brass e Lab 04 Young s Modulus e Lab 05 Tensile Testing Annealed Steel e Lab 06 Tensile Testing Metal Coupons e Lab 07 Tensile Testing Plastic Coupons e Lab 08 Tensile Testing Plastic Samples e Lab 09 Three Point Bending e Lab 10 Round Rod Bending e Lab 11 Bend Testing Beams e Lab 12 Tensile Testing Beams e Lab 13 Column Buckling and Slenderness Ratio e Lab 14 Euler Column Buckling Technical Support For assistance with any PASCO product contact PASCO at Address PASCO scientific 10101 Foothills Blvd Roseville CA 95747 7100 Phone 1 916 462 8384 worldwide 877 373 0300 U S E mail support pasco com Web Wwww pasco com For the latest information about the Materials Testing Machine or the replacement items and accessories so to the PASCO web site at www pasco com and enter the model number in the search window Limited Warranty For a description of the product warranty see the PASCO catalog Copyright The PASCO scientific Instruction Manual is copyrighted with all rights reserved Permission is granted to non profit educational institutions for reproduction of any part of this manual
32. y the Load Cell The Morera Testing sesterm compllence tealloration other the default choice is Materials Testing System Compliance Calibration Use this choice to setup the program to automatically make corrections on position data Cancel e Click Next to show Step Two the Choose Calibration Action menu Step Two Choose Calibration Action There are several choices in Create New Calibration that allow you to create select save modify and delete calibrations e Create New Calibration This is the default choice In this selec tion the calibration wizard will take you through the steps 2 choose Calibration Action needed to create and save a new compliance calibration This E includes prompting you to install the calibration rod Step Three record a data run on the graph provided Step Four and create a polynomial curve fit Step Five that will be stored as your com pliance calibration import Calibration From Sensor Create New Calibration Empty Calibration 0 The following is a description of the other Calibration Action choices Seren et e Use Calibration If the text window below Use Calibration is blank it means that there is no active calibration being used es Choose Calibration Action However if any compliance calibrations have been saved previ a ously in this Capstone file they will be displayed in the pull down Create New Calibration menu click the down
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