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1、ARTICLEINPRESSEngineeringFailureAnalysisxxx(2008)xxx–xxxContentslistsavailableatScienceDirectEngineeringFailureAnalysisjournalhomepage:www.elsevier.com/locate/engfailanalEffectofweldgeometryonthefatiguelifeofnon-load-carryingfilletweldedcruciformjointsaa
2、,*bcChin-HyungLee,Kyong-HoChang,Gab-ChulJang,Chan-YoungLeeaDepartmentofCivilandEnvironmentalEngineering,Chung-AngUniversity,221,Huksuk-dong,Dongjak-ku,Seoul156-756,RepublicofKoreabExpressandTransportationResearchInstitute,50-5,Sancheok-ri,Hwaseong-si,Gy
3、eonggi-do445-812,RepublicofKoreacDepartmentofCivilEngineering,Chung-AngUniversity,221,Huksuk-dong,Dongjak-ku,Seoul156-756,RepublicofKoreaarticleinfoabstractArticlehistory:Inthepresentstudy,theeffectofweldgeometryonthefatiguelifeofnon-load-carryingReceiv
4、ed22February2008filletweldedcruciformjointswasexperimentallyinvestigated.TheweldgeometryoftheReceivedinrevisedform16June2008cruciformspecimenswasintentionallyvaried,andfatiguetestswerecarriedoutonvariousAccepted6July2008weldgeometryconfigurations.Theconfig
5、urationsincludedweldflankangle,weldtoeAvailableonlinexxxxradiusandweldthroatthickness.Constantamplitudefatiguetestswithstressratio,R=0werecarriedoutusing250kNservo-hydraulicMTSuniversaltestingmachinewithKeywords:afrequencyof5Hz.Fromtheexperimentalresults
6、,correlationbetweentheweldgeometryFatiguetestandthefatiguelifeofnon-load-carryingfilletweldedcruciformjointswasanalyzedinWeldgeometryFatiguestrengthdetail.FilletweldedcruciformjointsÓ2008ElsevierLtd.Allrightsreserved.1.IntroductionBridgestructuresconstru
7、ctedrecentlyhavebeenbecomingmuchlongerandlargerthankstothedevelopmentofadvancedmaterialsincludinghighstrengthsteels[1,2].Insuchstructures,thereismuchpossibilityofcrackoccurrenceinweldsduetotheincreaseofvibrationandthesizeeffects.Inordertoimprovefatigues
8、trengthofwelds,severalpost-weldtreatmentssuchasTIG(TungstenInertGas)dressing,hammerpeening,grinding,UIT(UltrasonicImpactTreatment)andpost-weldheattreatmentcanbeperformed[3–6].However,thesemethodsoftenrequirewell-skilledworkersors
