Title of article
StudyofcleavageinitiationunderthermalshockbytestsoncrackedringsandthermomechanicalcalculationsOriginalResearchArticle
Author/Authors
M.Reytier، نويسنده , , S.Chapuliot، نويسنده , , S.Marie، نويسنده , , L.Ferry، نويسنده , , M.Nedelec، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
12
From page
1039
To page
1050
Abstract
Thisarticledescribesanewtypeoftestthateasilycreatesathermalshockcombinedwithmechanicalloadingbyusingstandardlaboratoryequipments.Themethodconsistsofrapidlyheatingaringinitiallyat−175°Cbycirculatinghotwaterthroughjudiciouslyplacedholes.Itallowstoobtain,atminimalcost,dataoncrackinitiationunderthermalshockinthetransitionzoneofsteel16MND5usedforpressurevessels,thesedatabeingnecessaryforworkonfracturecriteria.Detailsoftwotestsaregiven,onewithpreloadinginwhichcleavagefracturewasobservedandonewithoutpreloadinginwhichcleavageinitiationdidnotoccur.Thethermomechanicalcalculationsnecessaryfortheinterpretationofbothtestsarealsogiven.Finally,theglobalapproachtofractureisusedinvolvingcomparisonoftheloadingpathsJ(T)withthemastercurves[ASTME1921-97,1997.Standardtestmethodfordeterminationofreferencetemperaturetoforferriticsteelsinthetransitionrange,ASTMstandards],aswellasthelocalapproachproposedbyBeremin[Beremin,F.M.,1983.Alocalcriterionforcleavagefractureofanuclearpressurevesselsteel.Metall.Trans.A14A,2777–2287]forestimatingtheprobabilityoffractureofsuchrings.Itisshownthat,inbothapproaches,thecalculatedprobabilitiesareconsistentwiththeexperimentalobservations.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
896057
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