Title of article :
EvaluationmethodforstructuralintegrityassessmentincoredisruptiveaccidentoffastreactorOriginalResearchArticle
Author/Authors :
ToshioNakamura، نويسنده , , HitoshiKaguchi، نويسنده , , IwaoIkarimoto، نويسنده , , YoshioKamishima، نويسنده , , KazuyaKoyama، نويسنده , , ShigenobuKubo، نويسنده , , ShojiKotake، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
AproceduretoevaluatethestructuralintegrityofareactorvesselunderCDAconditionhasbeendevelopedbasedonsimulativeexperimentsunderCDAloadingusing1/20-and1/10-scalesteelmodelsofthedemonstrationFBRinJapan(DFBR).Fortheexperiments,aconstantpressuresourcehasbeendevelopedusingagasaccumulator.SimulationanalyseswerealsoconductedusingthedynamicanalysisprogramAUTODYN-2D,whichcansimulatefluid-structureinteractionandnon-linearmaterialbehaviourintwo-dimensionalgeometry.Theactualdynamicmaterialproperties,whosestrainrateswerefrom0.1to10s−1,wereusedintheanalyses.Thepressurehistoryandthedynamicresponseofstructureswerecomparedbetweenexperimentalresultsandtheanalysis,andtheappropriatenessofthenumericalanalyticalmethodfortheCDAproblemwasconfirmed.Inbothexperimentalandnumericalapproaches,theeffectofinternalstructureshasbeeninvestigated,andadrasticstrainreductionwasobservedowingtotheenergyabsorptionbyinternalstructures.Furthermore,materialtestsandelementtestsincludingweldjointtestsandbursttestswerecarriedouttodefinearationalisedstrainlimitundermulti-axialdynamicloadingcondition.Usingthedevelopedevaluationprocedure,apreliminaryevaluationforDFBRwascarriedoutandtherobustnessofthereactorboundaryinDFBRagainstCDAloadingwasalsoconfirmed.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
