ASTM C 393-1962 平夹层结构的挠曲试验方法

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【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


【英文标准名称】:StandardTestMethodforHydroperoxideNumberofAviationTurbineFuelsbyVoltammetricAnalysis
【原文标准名称】:伏安计测定分析法测定航空涡轮机燃料中氢过氧化物值搭标准试验方法
【标准号】:ASTMD6447-1999
【标准状态】:作废
【国别】:美国
【发布日期】:1999
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:过氧化物;航空涡轮机燃料;氢过氧化物值
【英文主题词】:analysis;peroxide;hydroperoxidenumber;peroxides;testing;aviationfuels-turbine;aviationgas
【摘要】:
【中国标准分类号】:E31
【国际标准分类号】:27_060_10
【页数】:4P;A4
【正文语种】:英语