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【英文标准名称】:TestMethodforMeasuringtheDynamicMechanicalPropertiesofPlasticsinTorsion(08.03)
【原文标准名称】:塑料扭转动态机械特性测量方法
【标准号】:ANSI/ASTMD5279-2001
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【实施或试行日期】:2001-09-25
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:塑料;机械试验;试验
【英文主题词】:plastics;mechanicaltesting;testing
【摘要】:Thistestmethodcoverstheuseofdynamicmechanicalinstrumentationforgatheringandreportingtheviscoelasticpropertiesofthermoplasticandthermosettingresinsandcompositesystemsintheformofrectangularspecimensmoldeddirectlyorcutfromsheets,plates,ormoldedshapes.Thetorsionaldatageneratedmaybeusedtoidentifythethermomechanicalpropertiesofaplasticsmaterialorcomposition.Thistestmethodisintendedtoprovidemeansfordeterminingthetorsionalmodulusofplasticsasafunctionoftemperatureusingnonresonantforced-vibrationtechniques,asoutlinedinPracticeD4065.Plotsoftheelastic(storage),loss(viscous),andcomplexmoduliandtandelta,asafunctionoffrequency,time,ortemperatureareindicativeofsignificanttransitionsinthethermomechanicalperformanceofthepolymericmaterialsystem.Thistestmethodisvalidforawiderangeoffrequencies,typicallyfrom0.01to100Hz.Apparentdiscrepanciesmayariseinresultsobtainedunderdifferingexperimentalconditions.Theseapparentdifferencesfromresultsobservedinanotherstudycanusuallybereconciledwithoutchangingtheobserveddatabyreportinginfull(asdescribedinthistestmethod)theconditionsunderwhichthedatawereobtained.Testdataobtainedbythistestmethodarerelevantandappropriateforuseinengineeringdesign.ThevaluesstatedinSIunitsaretoberegardedasstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1-ThistestmethodisequivalenttoISO6721,Part7.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:
【正文语种】:英语