ASTM E855-2008 涉及静负载的弹簧用金属板材弯曲试验的标准试验方法
作者:标准资料网 时间:2024-05-14 14:06:52 浏览:8491
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodsforBendTestingofMetallicFlatMaterialsforSpringApplicationsInvolvingStaticLoading
【原文标准名称】:涉及静负载的弹簧用金属板材弯曲试验的标准试验方法
【标准号】:ASTME855-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E28.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Bendtesting--metallicmaterials;Cantilevertesting;Four-pointloadedbeammethod;Loadingtests--metals/alloys;Massmomentofinertia;Mechanicalanalysis/testing;Metallicsheetmaterials;Metalsprings;Modulusofelasticity;Oscillatingpendulumme
【摘要】:Measurementsofbendingstrengthandmodulusofelasticityinbendingshouldbemadeformaterialswhoseprincipalstressingmodeisbending.Formanymaterials,thetensileandcompressivemoduliaresomewhatdifferent.Sincethebendingmodulusisacombinationofthetensileandcompressivemoduli,itisoftendifferentfromeachofthem.Precisemeasurementsofthemodulusofelasticityinbendingandbendingstrengthrequiredueregardfornumerousvariablesthatmayaffecttheirdetermination.Theseinclude(1)characteristicssuchasspecimenorientationwithrespecttotherollingdirection,grainsize,residualstresses,previousstrainhistory,dimensionsandspecimenpreparation,orientationofdeformedgrainsrelativetothedirectionofthenormalstress;and(2)testconditions,suchastem-perature,temperaturevariations,conditionofthetestequipmentandadherencetotherecommendedtestprocedure.1.1Thisstandarddescribesthreetestmethodsfordeterminingthemodulusofelasticityinbendingandthebendingstrengthofmetallicstripsorsheetsintendedfortheuseinflatsprings:1.1.1TestMethodA8212;acantileverbeam,1.1.2TestMethodB8212;athree-pointloadedbeam(thatis,abeamrestingontwosupportsandcentrallyloaded),and1.1.3TestMethodC8212;afour-pointloadedbeam(thatis,abeamrestingontwosupportsandloadedattwopointsequallyspacedfromeachsupport).1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.6.1Thistestmethodcoversthedeterminationofthemodulusofelasticityinbendingandtheoffsetyieldstrengthinbendingofflatmetallicstripsorsheetsforspringapplications.Thetestprocedureinvolvesmeasurementsoftheappliedmomentandthecorrespondingangleofdeflectionofacantileverbeam.Thethicknessrangecoveredis0.015to0.130in.(0.38to3.30mm).Thistestmethodisnotapplicablefornonlinearelasticmaterials.15.1Thesetestmethodscoverthedeterminationofthemodulusofelasticityinbendingandthebendingproofstrengthofflatmetallicstripsorsheetsforspringapplications.Thetestmethodsconsistofdeflectiontestsofasimplebeamconfigurationsubjectedtoeitherthree-orfour-pointsymmetricalloading.Thethicknessrangecoveredis0.010to0.050in.(0.25to1.3mm).Note38212;Thicknessrangesoutsideofthosespecifiedmaybeagreeduponbetweensuppliersandusers.
【中国标准分类号】:H22
【国际标准分类号】:21_160
【页数】:9P.;A4
【正文语种】:英语
【原文标准名称】:涉及静负载的弹簧用金属板材弯曲试验的标准试验方法
【标准号】:ASTME855-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:E28.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Bendtesting--metallicmaterials;Cantilevertesting;Four-pointloadedbeammethod;Loadingtests--metals/alloys;Massmomentofinertia;Mechanicalanalysis/testing;Metallicsheetmaterials;Metalsprings;Modulusofelasticity;Oscillatingpendulumme
【摘要】:Measurementsofbendingstrengthandmodulusofelasticityinbendingshouldbemadeformaterialswhoseprincipalstressingmodeisbending.Formanymaterials,thetensileandcompressivemoduliaresomewhatdifferent.Sincethebendingmodulusisacombinationofthetensileandcompressivemoduli,itisoftendifferentfromeachofthem.Precisemeasurementsofthemodulusofelasticityinbendingandbendingstrengthrequiredueregardfornumerousvariablesthatmayaffecttheirdetermination.Theseinclude(1)characteristicssuchasspecimenorientationwithrespecttotherollingdirection,grainsize,residualstresses,previousstrainhistory,dimensionsandspecimenpreparation,orientationofdeformedgrainsrelativetothedirectionofthenormalstress;and(2)testconditions,suchastem-perature,temperaturevariations,conditionofthetestequipmentandadherencetotherecommendedtestprocedure.1.1Thisstandarddescribesthreetestmethodsfordeterminingthemodulusofelasticityinbendingandthebendingstrengthofmetallicstripsorsheetsintendedfortheuseinflatsprings:1.1.1TestMethodA8212;acantileverbeam,1.1.2TestMethodB8212;athree-pointloadedbeam(thatis,abeamrestingontwosupportsandcentrallyloaded),and1.1.3TestMethodC8212;afour-pointloadedbeam(thatis,abeamrestingontwosupportsandloadedattwopointsequallyspacedfromeachsupport).1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.6.1Thistestmethodcoversthedeterminationofthemodulusofelasticityinbendingandtheoffsetyieldstrengthinbendingofflatmetallicstripsorsheetsforspringapplications.Thetestprocedureinvolvesmeasurementsoftheappliedmomentandthecorrespondingangleofdeflectionofacantileverbeam.Thethicknessrangecoveredis0.015to0.130in.(0.38to3.30mm).Thistestmethodisnotapplicablefornonlinearelasticmaterials.15.1Thesetestmethodscoverthedeterminationofthemodulusofelasticityinbendingandthebendingproofstrengthofflatmetallicstripsorsheetsforspringapplications.Thetestmethodsconsistofdeflectiontestsofasimplebeamconfigurationsubjectedtoeitherthree-orfour-pointsymmetricalloading.Thethicknessrangecoveredis0.010to0.050in.(0.25to1.3mm).Note38212;Thicknessrangesoutsideofthosespecifiedmaybeagreeduponbetweensuppliersandusers.
【中国标准分类号】:H22
【国际标准分类号】:21_160
【页数】:9P.;A4
【正文语种】:英语
下载地址: 点击此处下载