Title of article :
Analyticstudyofthesteellinerneartheequipmenthatchina1:4scalecontainmentmodelOriginalResearchArticle
Author/Authors :
PatrickAnderson، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Acontainmentscale-modeltest,performedatSandiaNationalLaboratories,wasloadedbyoverpressurizationandthefirstleakwasconcludedtobecausedbytearsinthesteellinerfoundneartheequipmenthatch.Thesetearswerelocatedinthevicinityoftheverticalfoldinbetweenthegeneralcurvedpartandtheembossment(verticalbendline).A3Dfiniteelementanalysisoftheregionneartheequipmenthatch,showsthathighlocalizedstrainswilldevelopinthevicinityofthebendline.Itisshownthatthelinerseparatesfromtheconcretewallnearthebendlinewhenthecontainmentexpands.Thetensionedlinerwillbeincontactwiththesurfaceoftheconcretewallingeneral,butneartheverticalbendlinethelinertendstobestraightenedout.Thisflexuralbehaviourcausehighstrainsintheweldlocatedinthebendline.Theactualpeakstrainlevelisdependingonthedetailedgeometryinthebendlineandthefailurestrainlevelofaweldedbiaxialstressedzoneisdifficulttodefine.However,theanalysispresentedinthispapershowsthattheflexuralbehaviourinthebendlinemostlikelycontributedtothelinertearsfoundinthescale-modeltest.Ageneralconclusionfromthestudypresentedinthispaperisthat,thenon-linearplasticbehaviourofthelinerisverysensitivetothedetaileddesignandtheinteractionbetweenthelinerandtheconcrete.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
