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【英文标准名称】:StandardTestMethodforPlastics:DynamicMechanicalProperties:InCompression
【原文标准名称】:塑料的标准试验方法:动力机械性能:压缩
【标准号】:ASTMD5024-1995a
【标准状态】:作废
【国别】:
【发布日期】:1995
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:镦锻试验;塑料;试验;材料试验
【英文主题词】:compression;dynamicmechanicaltheologicalproperties;elastic;lineardisplacement;loss;storagemodulus;tandelta;viscoelasticbehavior
【摘要】:1.1Thistestmethodcoverstheuseofdynamicmechanicalinstrumentationforgatheringandreportingtheviscoelasticpropertiesofthermoplasticandthermosettingresinsandcompositesystemsintheformofcylindricalspecimensmoldeddirectlyorcutfromsheets,plates,ormoldedshapes.Thecompressiondatageneratedmaybeusedtoidentifythethermomechanicalpropertiesofaplasticsmaterialorcompositionusingavarietyofdynamicmechanicalinstruments.1.2Thistestmethodisintendedtoprovidemeansfordeterminingthemodulusasafunctionoftemperatureofawidevarietyofplasticsmaterialsusingnonresonantforced-vibrationtechniques,asoutlinedinPracticeD4065.Plotsoftheelastic(storage),loss(viscous)andcomplexmoduliandtandeltaasafunctionoffrequency,time,ortemperatureareindicativeofsignificanttransitionsinthethermomechanicalperformanceofthepolymericmaterialsystem.1.3Thistestmethodisvalidforawiderangeoffrequencies,typicallyfrom0.01to100Hz.1.4Apparentdiscrepanciesmayariseinresultsobtainedunderdifferingexperimentalconditions.Theseapparentdifferencesfromresultsobservedinanotherstudycanusuallybereconciled,withoutchangingtheobserveddata,byreportinginfull(asdescribedinthistestmethod)theconditionsunderwhichthedatawereobtained.1.5Duetopossibleinstrumentationcompliance,thedatageneratedareintendedtoindicaterelativeandnotnecessarilyabsolutepropertyvalues.1.6Testdataobtainedbythistestmethodarerelevantandappropriateforuseinengineeringdesign.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note18212;ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:4P.;A4
【正文语种】: