Title of article :
Simplifiedmethodtoevaluateupperlimitstressintensityfactorrangeofaninner-surfacecircumferentialcrackundersteadystatethermalstripingOriginalResearchArticle
Author/Authors :
ToshiyukiMeshii، نويسنده , , KentaroShibata، نويسنده , , KatsuhikoWatanabe، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Simplifiedmethodtoevaluatetheupperlimitstressintensityfactor(SIF)rangeofaninner-surfacecircumferentialcrackinathin-tothick-walledcylinderundersteadystatethermalstripingwasconsideredinthispaper.Theedgesofthecylinderwererotation-restrainedandtheoutersurfacewasadiabaticallyinsulated.TheinnersurfaceofthecylinderwasheatedbyafluidwithconstantheattransfercoefficientwhosetemperaturefluctuatedsinusoidallyatconstantamplitudeΔT.Bycombiningouranalyticaltemperaturesolutionfortheproblemandoursemi-analytical-numericalSIFevaluationmethodforthecrack,weshowedthatthedesiredmaximumsteadystateSIFrangecanbeevaluatedwithanengineeringaccuracyafterΔT,themeanradiustowallthicknessratiorm/Wofthecylinder,thethermalexpansioncoefficientandPoissonʹsratioarespecified.Byapplyingourmethod,notransientSIFanalysisnorsensitivityanalysisofthestripingfrequencyontheSIFrangeisnecessary.Numericalresultsshowedthatourmethodisvalidforcylindersinarangeofrm/W=10–1.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
