Title of article :
RestrainingeffectofsupportplatesonthelimitloadsforcircumferentialcracksinthesteamgeneratortubeOriginalResearchArticle
Author/Authors :
Hyun-SuKim، نويسنده , , TaeEunJin، نويسنده , , Hong-DeokKim، نويسنده , , Yoon-SukChang، نويسنده , , Young-JinKim، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Thesteamgeneratorinanuclearpowerplantisalargeheatexchangerthatusesheatfromareactortogeneratesteamtodrivetheturbinegenerator.Ruptureofasteamgeneratortubecanresultinreleaseoffissionproductstoenvironmentoutside.Therefore,anaccurateintegrityassessmentofthesteamgeneratortubeswithcracksisofgreatimportanceformaintainingthesafetyofanuclearpowerplant.Thesteamgeneratortubesaresupportedatregularintervalsbytubesupportplatesandrotationsofthetubesarerestrained.Althoughithasbeenreportedthatthelimitloadforacircumferentialcrackissignificantlyaffectedbyboundaryconditionofthetube,existinglimitloadsolutionsdonotconsidertherestrainingeffectoftubesupportplatecorrectly.Inaddition,therearenolimitloadsolutionsforcircumferentialcracksinU-bendregionwiththeeffectoftubesupportplate.ThispaperprovidesdetailedlimitloadsolutionsforcircumferentialcracksintopoftubesheetandtheU-bendregionsofthesteamgeneratortubewiththeactualboundaryconditionstosimulatetherestrainingeffectofthetubesupportplate.Suchsolutionsaredevelopedbasedonthree-dimensional(3-D)finiteelementanalyses.Theresultinglimitloadsolutionsaregiveninapolynomialform,andthuscanbesimplyusedinpracticalintegrityassessmentofthesteamgeneratortubes.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
