Title of article
AstudyonthefreedropimpactofacaskusingcommercialFEAcodes
Author/Authors
YoungShinLee، نويسنده , , Chung-HyunRyu، نويسنده , , HyunSooKim، نويسنده , , YoungJinChoi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
8
From page
2219
To page
2226
Abstract
Thepackageusedtotransportradioactivematerials,whichiscalledacask,mustbedesignedtokeepitscontentssafeundernormalandhypotheticalaccidentconditions.Thedesignrequirementsofthecaskareverifiedbytestorfiniteelementanalysis(FEA).Comparingevaluationproceduresforthesafetyofanewcask,thecostofFEAisgenerallymuchlessthanthattest.Therefore,FEAismainlyusedtoverifysafetyofacaskundertheconsideredconditions.However,onecommercialFEAcodemayshowdifferentresultsfromanotherFEAcodeforthesameproblemduetothemodelerʹsseveralassumptionsforsimplifyingactualstatesintotheFEmodelandduetomodelingtechnique.Materialsofthecomponentsofacaskdisplayelastic–plasticorelastic–perfectlyplasticbehaviorundertheconsideredconditionsinwhichlargedeformation,impactandcontactmechanismareincluded.ThebehaviorissimulatedwithdifficultyandmayhavedifferentresultsdependingonFEAcodes.Inthispaper,finiteelementanalysisiscarriedoutforthe9-mfreedropandthepunctureconditionunderthehypotheticalaccidentconditionbyusingLS-DYNA3DandABAQUS/Explicit.EnergyandeffectivestressoneachcomponentarepresentedandcomparedbetweenthetwoFEAcodes,wheretheeffectivestressdesignatesthemaximumvonMisesstressoninnerandoutershells.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
895939
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