【英文标准名称】:TestMethodforDeterminationoftheModulusofElasticityforRigidandSemi-RigidPlasticSpecimensbyControlledRateofLoadingUsingThreePointBending
【原文标准名称】:用三点弯曲法测定在装载控制速度下刚性和半刚性塑料样品弹性模量的方法
【标准号】:ANSI/ASTMD5934-1997
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【实施或试行日期】:1997-03-05
【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】:
【英文主题词】:
【摘要】:Thistestmethodcoverstheuseofcontrolledrateofloadingmechanicalinstrumentationforgatheringandreportingthemodulusofelasticityofthermoplasticandthermosettingresinsandcompositesystemsintheformofrectangularbarsmoldeddirectlyorcutfromsheets,plates,ormoldedshapes.Thedatagenerated,usingthree-pointbendingtechniques,maybeusedtoidentifythethermomechanicalpropertiesofaplasticsmaterialorcompositionusingacontrolledrateofloadingmechanicalinstrument.ResultsobtainedfromthistestmethodmayormaynotbecomparabletoresultsobtainedusingD790.Thistestmethodisintendedtoprovideameansfordeterminingthemodulusofelasticitywithinthelinearregionofthestress-straincurve(seeFig1).Thistestisconductedatstandardtemperatureandpressure.Apparentdiscrepanciesmayariseinresultsobtainedunderdifferingexperimentalconditions.Theseapparentdifferencesfromresultsobservedinanotherstudycanusuallybereconciled,withoutchangingtheobserveddata,byreportinginfull(asdescribedinthistestmethod)theconditionsunderwhichthedatawereobtained.ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesstatedinparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Note1-ThereisnosimilarorequivalentISOstandard.
【中国标准分类号】:G31
【国际标准分类号】:83_040_01
【页数】:
【正文语种】:英语