ASTM D3164-2003 用拉伸负荷法测定胶粘剂粘接塑料搭接接头剪切强度特性的标准试验方法

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【英文标准名称】:StandardTestMethodforStrengthPropertiesofAdhesivelyBondedPlasticLap-ShearSandwichJointsinShearbyTensionLoading
【原文标准名称】:用拉伸负荷法测定胶粘剂粘接塑料搭接接头剪切强度特性的标准试验方法
【标准号】:ASTMD3164-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D14.40
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:连接件(活接头);抗拉荷载;塑料;胶粘剂;测定;试验;粘结强度
【英文主题词】:adhesivebond;lap-shear;sandwichjoint;shear;tension
【摘要】:Duetotheincreaseduseofadhesivelybondedplasticsasaresultoftheinherentadvantagesaffordedbybondedratherthanmechanicallyfastenedjoints,particularlythealleviationofstressrisersandstresscracking,thereisaneedforstandardtestsbywhichjointsofvarioussubstratesandadhesivescanbecompared.Thistestmethodisintendedtomeetsuchaneed.Thistestmethodislimitedtotesttemperaturesbelowthesofteningpointofthesubjectadherends,andisnotintendedforuseonanisotropicadherendssuchasreinforcedplasticlaminates.Themisuseofstrengthvaluesobtainedfromthistestmethodasdesignstressallowablevaluesforstructuraljointscouldleadtoproductfailure,propertydamage,andhumaninjury.Theapparentshearstrengthofanadhesiveobtainedfromagivensmallsingle-lapspecimenmaydifferfromthatobtainedfromajointmadewithdifferentadherendsorbyadifferentbondingprocess.Thenormalvariationoftemperatureandmoistureintheserviceenvironmentcausestheadherendsandtheadhesivetoswellandshrink.Theadherendsandadhesivearelikelytohavedifferentthermalandmoisturecoefficientsofexpansion.Eveninsmallspecimens,short-termenvironmentalchangescaninduceinternalstressesorchemicalchangesintheadhesivethatpermanentlyaffecttheapparentstrengthandothermechanicalpropertiesoftheadhesive.Theproblemofpredictingjointbehaviorinachangingenvironmentisevenmoredifficultifadifferenttypeofadherendisusedinalargerstructuraljointthanwasusedinthesmallspecimen.Theapparentshearstrengthmeasuredwithasingle-lapspecimenisnotsuitablefordeterminingallowabledesignstressesfordesigningstructuraljointsthatdifferinanymannerfromthejointstestedwithoutthoroughanalysisandunderstandingofthejointandadhesivebehaviors.Single-laptestsmaybeusedforcomparingandselectingadhesivesorbondingprocessesforsusceptibilitytofatigueandenvironmentalchanges,butsuchcomparisonsmustbemadewithgreatcautionsincedifferentadhesivesmayresponddifferentlyindifferentjoints.SeeGuideD4896forfurtherdiscussionoftheconceptsrelativetointerpretationofadhesivebondedsinglelapjoints.1.1ThistestmethodisintendedtocomplementTestMethodD1002andTestMethodD3163andextenditsapplicationtosingle-lap-shearadhesivejointsemployingplasticadherends.Thetestmethodisusefulforgeneratingcomparativeshearstrengthdataforjointsmadefromanumberofplastics.Itcanalsoprovideameansbywhichseveralplasticssurfacetreatmentscanbecompared.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Note18212;AcompletemetriccompaniontoTestMethodD3164hasbeendeveloped-D3164M.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:83_180
【页数】:4P.;A4
【正文语种】: