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
Pages
8
From page
1460
To page
1467
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
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941407
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