Which manufacturer is best for Strain Controlled Compression testing machine
AStrainControlledCompressiontestingmachineisusedtocrushvariousconcrete specimenstoverifythatthematerialisstrongenoughforitsintendeduse.These multipurposeinstrumentsaretheworkhorsesofanyconcretetestingfacility.Theproperone mightmakeorbreakyourtestingprogrammeduetoitsversatilityandadaptabilitytodiverse sampletypes.
Material Characteristics & Test Parameters
Determinetheexactperformanceandrequirementsofyourmaterialorproductbefore investinginatestingmachine.Itispossibletonarrowdownthesearchfortheidealuniversal testingmachinebyconsideringmaterialfeaturessuchastheneededmaximumforcecapacity andspecimensizeandtestparameterssuchasthedesiredtestingspeed.Carefullyexamine anyapplicableASTM,ISO,orENteststandards.Makesurethere'senoughroomforallthe fixturingandspecimensifyouwanttouseasingleUTMtoconductmultiplesortsoftesting.
Test Results & Reporting
Selectthemechanicalcharacteristicsforwhichyouwantareporttobegenerated.The controllerandsoftwaresuiteareexpectedtoperformthetestsandsupplythenecessary information.Ifreal-timeperformanceisrequired,searchforasoftwareinterfacetodeliver real-timedata.Ensurethesoftwareyouusehasgraphingcapabilitiesifyouusevisualsin yourreport.
Test fixtures and mounting choices
Testingintension,bending,andcompressioneachcallforauniquesetoftestfixtures.The followingisamachinesetupthatisanexampleofatestingsystemusedforvariousteststhat callforspecialisedtestfixtures.TheelectromechanicalUTMmachineincludeshigh-capacity wedgegripswithgrip/fixtureadapters.Withthesedual-fixtureadapters,theoperatorcan keepthewedgegripsonthetestingmachinewhilealsomountingalternativefixturing,such asanASTMbendfixtureorhigh-capacitycompressionplatens.
YoucanusethewedgegripspermanentlyattachedtotheUTMtoconducttensiletesting. Attachthecompressionplatenstothetopandbottomwedgegripsforacompressiontest usingtheappropriateadapters.Finally,thecompressionplatensfromthewedgegripsmustbe removedbeforethebendfixturecanbeattachedfortesting.High-capacitytestfixtureslike high-capacitywedgegripsaretypicallybulkyanddifficulttoremove.Thisdual-fixture layouthelpstheoperatorsavetimeandeffort.
The load cell and transducers
Selectaloadcellwhoseforcerangeisadequateforthetestsyouintendtoconduct.Theload cellmustbebidirectional,meaningitcanmeasureforceineithertensionorcompression.If morethanoneloadcellisrequired,thehigh-capacityloadcellcanbekeptinplacewithout removingitfromthesystembyusingapiggybackadaptertoattachaloadcellwithalesser capacitydirectlytoit.
AdditionaltestingoftheUTMmaynecessitatetheuseofdisplacementtransducersandstrain measurementinstruments.Todecidewhetherthecrossheaddisplacementdataissufficientor whetherotherdisplacementtransducersareneededtoacquirethemostaccuratedata,referto thestandardisedtestproceduresorchooseyourtesttechniques.Displacementtransducers requireafixturemountorayokeassembly,whileaxialextensometerscanbeclippeddirectly ontothespecimen.
Conclusion
WhenchoosingacompressiontestermadebyaStrainControlledCompressiontesting machinemanufacturer,itiscrucialtoconsiderthefactorsabove.Multipletestscanbedone
efficientlyonasingleuniversaltestingmachinebycarefullycharacterisingthematerial qualities,desiredtestresults,andequipmentselection.