ASTM D3983-1998(2004) 用厚粘附体拉力搭接样品测定软质胶粘剂的强度和剪切模数的试验方法
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【英文标准名称】:StandardTestMethodforMeasuringStrengthandShearModulusofNonrigidAdhesivesbytheThick-AdherendTensile-LapSpecimen
【原文标准名称】:用厚粘附体拉力搭接样品测定软质胶粘剂的强度和剪切模数的试验方法
【标准号】:ASTMD3983-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D14.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测量;胶粘剂;试样;剪切强度;粘结强度;试验
【英文主题词】:metal;nonrigidadhesives;shearmodulus;shearstrength;testmethod;thick-adherendtensile-lapspecimen;wood
【摘要】:Thistestmethodiscapableofprovidingshearmodulusandshearstrengthvaluesforadhesiveswithaccuracysuitableforusebydesignengineersinpredictingthecharacteristicsofbuildingassembliesbondedwithnonrigidadhesives.Adhesiveformulatorswillalsofindthemethodusefulduringthedevelopmentofnewadhesivesystems.Ingeneral,thethickadherendlap-sheartestisausefultoolinresearchduringstudiesofbothshort-andlong-termload-deformationpropertiesofadhesives.Thisthickadherendlap-sheartestyieldsauniformityofstressdistributionapproachingthatobtainedinthintubularbuttjointssubjectedtotorsion,whichisconsideredtobeaconditionofpureshear.Theuseriscautionedthatpureshearstrengthcannotbeobtainedbythistestmethod,becausesometensileandcompressionstressesandstressconcentrationsarepresentinthejoint.Theestimateofshearstrengthbythistestmethodwillbeconservative.Ifpureshearstrengthisdemanded,thenTestMethodE229shouldbeused.1.1Thistestmethoddescribesamethodofmeasuringtheshearmodulusandrupturestressinshearofadhesivesinbondedjoints.Themethodemployslap-shearspecimenswithwood,metal,orcompositeadherends,withadhesiveshavingshearmodulirangingupto700MPa(100000psi).Thistestmethodissuitablegenerallyforjointsinwhichtheratioofadherendtensilemodulustoadhesiveshearmodulusisgreaterthan300to1.Itisnotsuitableforadhesivesthathaveahighshearmodulusinthecuredstateandthatalsorequireeliminationofvolatileconstituentsduringcure.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:
【页数】:11P.;A4
【正文语种】:
【原文标准名称】:用厚粘附体拉力搭接样品测定软质胶粘剂的强度和剪切模数的试验方法
【标准号】:ASTMD3983-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D14.70
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测量;胶粘剂;试样;剪切强度;粘结强度;试验
【英文主题词】:metal;nonrigidadhesives;shearmodulus;shearstrength;testmethod;thick-adherendtensile-lapspecimen;wood
【摘要】:Thistestmethodiscapableofprovidingshearmodulusandshearstrengthvaluesforadhesiveswithaccuracysuitableforusebydesignengineersinpredictingthecharacteristicsofbuildingassembliesbondedwithnonrigidadhesives.Adhesiveformulatorswillalsofindthemethodusefulduringthedevelopmentofnewadhesivesystems.Ingeneral,thethickadherendlap-sheartestisausefultoolinresearchduringstudiesofbothshort-andlong-termload-deformationpropertiesofadhesives.Thisthickadherendlap-sheartestyieldsauniformityofstressdistributionapproachingthatobtainedinthintubularbuttjointssubjectedtotorsion,whichisconsideredtobeaconditionofpureshear.Theuseriscautionedthatpureshearstrengthcannotbeobtainedbythistestmethod,becausesometensileandcompressionstressesandstressconcentrationsarepresentinthejoint.Theestimateofshearstrengthbythistestmethodwillbeconservative.Ifpureshearstrengthisdemanded,thenTestMethodE229shouldbeused.1.1Thistestmethoddescribesamethodofmeasuringtheshearmodulusandrupturestressinshearofadhesivesinbondedjoints.Themethodemployslap-shearspecimenswithwood,metal,orcompositeadherends,withadhesiveshavingshearmodulirangingupto700MPa(100000psi).Thistestmethodissuitablegenerallyforjointsinwhichtheratioofadherendtensilemodulustoadhesiveshearmodulusisgreaterthan300to1.Itisnotsuitableforadhesivesthathaveahighshearmodulusinthecuredstateandthatalsorequireeliminationofvolatileconstituentsduringcure.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G38
【国际标准分类号】:
【页数】:11P.;A4
【正文语种】:
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