ASTM D7137/D7137M-2007 损坏聚合物基体复合板的残余压力强度的标准试验方法

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【英文标准名称】:StandardTestMethodforCompressiveResidualStrengthPropertiesofDamagedPolymerMatrixCompositePlates
【原文标准名称】:损坏聚合物基体复合板的残余压力强度的标准试验方法
【标准号】:ASTMD7137/D7137M-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D30.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:compositematerials;compressionafterimpact;compressiontesting;compressiveresidualstrength;damagetolerance
【摘要】:1.1Thistestmethodcoverscompressionresidualstrengthpropertiesofmultidirectionalpolymermatrixcompositelaminatedplates,whichhavebeensubjectedtoquasi-staticindentationperTestMethodD6264/D6264Mordrop-weightimpactperTestMethodD7136/D7136Mpriortoapplicationofcompressiveforce.Thecompositematerialformsarelimitedtocontinuous-fiberreinforcedpolymermatrixcompositeswithmultidirectionalfiberorientations,andwhicharebothsymmetricandbalancedwithrespecttothetestdirection.Therangeofacceptabletestlaminatesandthicknessesisdefinedin8.2.Note1Whenusedtodeterminetheresidualstrengthofdrop-weightimpactedplates,thistestmethodiscommonlyreferredtoastheCompressionAfterImpact,orCAI,method.1.2Themethodutilizesaflat,rectangularcompositeplate,previouslysubjectedtoadamagingevent,whichistestedundercompressiveloadingusingastabilizationfixture.Note2Thedamagetolerancepropertiesobtainedareparticulartothetype,geometryandlocationofdamageinflictedupontheplate.1.3Thepropertiesgeneratedbythistestmethodarehighlydependentuponseveralfactors,whichincludespecimengeometry,layup,damagetype,damagesize,damagelocation,andboundaryconditions.Thus,resultsaregenerallynotscalabletootherconfigurations,andareparticulartothecombinationofgeometricandphysicalconditionstested.1.4Thistestmethodcanbeusedtotestundamagedpolymermatrixcompositeplates,buthistoricallysuchtestshavedemonstratedarelativelyhighincidenceofundesirablefailuremodes(suchasendcrushing).TestMethodD6641/D6641Misrecommendedforobtainingcompressivepropertiesofundamagedpolymermatrixcomposites.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetexttheinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:83_120
【页数】:17P.;A4
【正文语种】: