Title of article :
Failureprobabilityassessmentofwall-thinnednuclearpipesusingprobabilisticfracturemechanicsOriginalResearchArticle
Author/Authors :
Sang-MinLee، نويسنده , , Yoon-SukChang، نويسنده , , Jae-BoongChoi، نويسنده , , Young-JinKim، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Theintegrityofnuclearpipingsystemhastobemaintainedduringoperation.Inordertomaintaintheintegrity,reliableassessmentproceduresincludingfracturemechanicsanalysis,etc.,arerequired.Uptonow,thishasbeenperformedusingconventionaldeterministicapproacheseventhoughtherearemanyuncertaintiestohinderarationalevaluation.Inthisrespect,probabilisticapproachesareconsideredasanappropriatemethodforpipingsystemevaluation.Theobjectivesofthispaperaretoestimatethefailureprobabilitiesofwall-thinnedpipesinnuclearsecondarysystemsandtoproposelimitedoperatingconditionsunderdifferenttypesofloadings.Todothis,aprobabilisticassessmentprogramusingreliabilityindexandsimulationtechniqueswasdevelopedandappliedtoevaluatefailureprobabilitiesofwall-thinnedpipessubjectedtointernalpressure,bendingmomentandcombinedloadingofthem.Thesensitivityanalysisresultsaswellasprototypalintegrityassessmentresultsshowedapromisingapplicabilityoftheprobabilisticassessmentprogram,necessityofpracticalevaluationreflectingcombinedloadingconditionandoperationconsideringlimitedcondition.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
