【英文标准名称】:Structuraladhesives-Testmethodsforassessinglongtermdurabilityofbondedmetallicstructures
【原文标准名称】:结构胶粘剂.评定粘结的金属结构长期耐久性的试验方法
【标准号】:BSEN15190-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-08-31
【实施或试行日期】:2007-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:胶粘连接;胶粘剂;检验设备;气候条件;定义;耐久测试;疲劳特性;裂纹;长期性状;材料测试;材料力学性能;机械测试;金属粘结;金属;耐力;试样制备;结构胶粘剂;抗拉测试;试验设备;试验报告;试样;测试;测试装置
【英文主题词】:Adhesive-bondedjoints;Adhesives;Checkingequipment;Climaticcondition;Definition;Definitions;Endurancetesting;Fatiguebehaviour;Flaws;Long-timebehaviour;Materialstesting;Mechanicalbehaviourofmaterials;Mechanicaltesting;Metalbond;Metals;Resistance;Specimenpreparation;Structuraladhesives;Tensiletesting;Testequipment;Testreports;Testspecimens;Testing;Testingdevices
【摘要】:1.1Thisstandardspecifiestestproceduresfordeterminingthelong-termdurabilityofanadhesivesystemsubjectedtoenvironmentalandfatigueloads.TheproceduresarebaseduponmeasurementofthecrackgrowthrateandtheresistancetocrackpropagationthroughtheadhesivelayerindoublecantileverbeamtypespecimensunderanappliedmodeIopeningcyclingloading.1.2Thetestspecimensconsistofrectangularmetalsubstratesbondedtogetherwithapre-startercrackinthebondline.Fortestingjointsconsistingofrelativelythinsheetsofmetallicsubstratesthespecimenneedstobestructurallyreinforcedbyaddinglayersofcompatiblematerialtothebackofeachadherendsubstrateinordertopreventpermanentdeformation,usuallyreferredtoasreinforceddoublecantileverbeam(RDCB)testspecimen.1.3Forbrevity,thestandardrelatestotestingRDCBspecimens,whichareessentiallymorecomplexinmanufacturingthanstandarddoublecantileverbeam(DCB)specimens.However,thestandardallowsalsoforuseofsinglesubstratedoublecantileverbeamspecimenswhenthesubstratematerialisavailableinsufficientthickness.1.4Thetestmethodhasbeenproventobeparticularlysensitiveinfindingweaknesseswithincertainadhesivesystemsandisrecommendedasascientifictooltostudyadhesionproperties.Thistestmethodmaybeusedtodetermine:-ThefatiguecrackgrowthrateasafunctionofthemodeIstrainenergyreleaserate;-Thethresholdvaluesfornegligiblecrackgrowth;-Theeffectsofotherenvironmentalfactors(temperatureand/orhumiditycycling);-ThemodeI(peelorcrackopening)failuremodeoftheadhesivejoint(cohesive,interfacial,near-surface…).
【中国标准分类号】:G39
【国际标准分类号】:83_180
【页数】:24P.;A4
【正文语种】:英语