Title of article :
Coalescenceevaluationofcollinearaxialthrough-wallcracksinsteamgeneratortubesOriginalResearchArticle
Author/Authors :
Yoon-SukChang، نويسنده , , Nam-SuHuh، نويسنده , , Young-JinKim، نويسنده , , JinHoLee، نويسنده , , YoungHwanChoi، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
Tomaintainthestructuralintegrityofsteamgeneratortubes,usually,40%ofwallthicknesspluggingcriterionhasbeenadopted.However,sincethecriterionisapplicableonlyforthesteamgeneratortubecontainingasinglecrack,theinteractioneffectofmultiplecrackscannotbeconsidered.Inthispaper,thecoalescencepressureoftubewithdualcracksisevaluatedbasedondetailedthree-dimensionalelastic–plasticfiniteelementanalyses.Intermsofthecrackconfiguration,collinearaxialthrough-wallcrackswithvariouslength,distanceandratiobetweenindividualcracksareselected.Theapplicabilityoffailurepressurepredictionmodelsrecentlyproposedbytheauthorswasverifiedbycomparingthefiniteelementanalysesresultswithcorrespondingexperimentaldatafortubeswithtwoidenticalcracks.Further,inordertoquantifytheeffectofcracklengthratioonfailurebehavior,thefailurepressurepredictionmodelwasusedexpansivelyfortubescontainingdifferent-sizedcracksandacoalescenceevaluationdiagramwasdeveloped.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
