Studies on the effect of weld defect on the fatigue behavior of welded structures-中国Betway体育网页登陆

摘要 Structuralintegrityisstatedasthescienceandtechnologyofmarginbetweensafetyanddisaster.Systematicpredictionofstructuralintegrityofcriticalstructuressuchascombustionchambers,pressurevessels,nuclearreactorcomponents,boilersetc.,ensuresthehumansafety,environmentalprotection,andtheeconomicalconsiderations.Thepresentworkaimsatpredictionoffatiguebehaviourofsymmetricstructureslikepressurevesselsinthepresenceofcommonweldingdefectssuchaslackoffusion(LOF),lackofpenetration(LOP)andporosity.Aringtypespecimenwhichreplicatesthestresspatterninthepressurevesselisconsideredforthestudyofseverityofweldimperfections.InitialdimensionsofwelddefectsarearrivedbyperformingNDTinspection.Crackgrowthanalysisiscarriedouttodeterminetheremaininglifeoftheweldedjointwithdefects.

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Studies on the effect of weld defect on the fatigue behavior of welded structures

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