Title of article
InelasticanalysisofcylindricalsteelcontainmentvesselsunderinternalaccidentconditionsOriginalResearchArticle
Author/Authors
AlexandreLandesmann، نويسنده , , EduardodeMirandaBatista، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
15
From page
541
To page
555
Abstract
Thepresentpaperisconcernedwiththestructuralsafetyassessmentofaproposednuclearsteelcontainmentshellduringapostulatedloss-of-coolantaccidentscenario.Thestructuralevaluationisperformedusingacomputationalsecond-orderrefinedplastic-hingemethod,whichiscapableofaccuratelypredictingallpossiblemodesoffailureinanefficientandcomputationallylessexpensivewaythanthegeneralFEMformulation.Atangentmodulusmodelandagradualreductionoftheinelasticresistancesurfaceareusedtotakeintoaccountdirectlythestructuralstrengthandstabilityperformancesintheelementformulation.Theimplementednumericalmethodprovidesmorereliablesafetymarginsandmaintainability,exhibitingamoreuniformstructuralsafetylevelthanthelinearelasticanalysis.Asimplifiednon-linearheattransfermodel,developedforsymmetricalcross-sections,isusedtodeterminethesteeltemperaturegradientandtoestablishalinkbetweenthethermoandthemechanicalanalysis.Theloadresultingfrompressureandtemperaturethermodynamiccalculations,obtainedfortheaccidentscenario,areconsideredinthestructuralquasi–staticanalysis,sothatthestructuralresponsecanbetrackedfortheentiredurationofthesimulatedaccident.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894869
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