• Title of article

    InvestigationonconstrainteffectofreactorpressurevesselunderpressurizedthermalshockOriginalResearchArticle

  • Author/Authors

    Jin-SuKim، نويسنده , , Jae-BoongChoi، نويسنده , , Young-JinKim، نويسنده , , Youn-WonPark، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2003
  • Pages
    10
  • From page
    197
  • To page
    206
  • Abstract
    Inrecentyears,theintegrityofreactorpressurevessels(RPVs)underpressurizedthermalshock(PTS)accidenthasbeentreatedasoneofthemostcriticalissues.UnderPTScondition,thecombinationofthermalstressduetoasteeptemperaturegradientandmechanicalstressduetointernalpressurecausesconsiderabletensilestressinsidetheRPVwall.Asaresult,cracksontheinnersurfaceofRPVscanexperienceelastic–plasticbehaviorthatcanbeexplainedusingtheJ-integral.Insuchacase,however,theJ-integralmaypossiblyloseitsvalidityduetotheconstrainteffect.Thedegreeofconstrainteffectisinfluencedbytheloadingmode,thecrackgeometryandthematerialproperties.Inthispaper,three-dimensionalfiniteelementanalysesareperformedforvarioussurfacecrackstoinvestigatetheeffectofcladthicknessandcrackgeometryontheconstrainteffect.Atotalof36crackgeometriesareanalyzedandresultsarepresentedbythetwo-parametercharacterizationbasedontheJ-integralandtheQ-stress.
  • Journal title
    Nuclear Engineering and Design Eslah
  • Serial Year
    2003
  • Journal title
    Nuclear Engineering and Design Eslah
  • Record number

    894486

    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=10&DC=894486