Title of article :
AunifiedtimedependentmodelforlowcyclefatigueandratchettingfailurebasedonmicrocrackgrowthOriginalResearchArticle
Author/Authors :
XianjieYang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2007
Abstract :
Inthispaper,aunifiedtimedependentmodelforlowcyclefatigueandratchettingfailurehasbeendevelopedbasedonthemicrocrackgrowth.ThemodelutilizedfracturemechanicstheoryusingJ-integralundercreep–fatigueloadingandassumedthatthemicrocrackpropagationdeterminesthefailurelife.Themicrocrackratesareseparatedintothreeparts:(1)thetimeindependentfatiguecrackgrowth,(2)thetimedependentfatiguecrackgrowthand(3)thetimedependentratchettingcrackgrowth.Thecyclicfailurecriteriaunderdifferentloadingconditionswerederivedfromthemicrocrackgrowth.Somesimplifiedmodelswereobtainedandtheycancharacterizethetimedependentlowcycleandratchettingfailureliveswithholdtimeandloadingfrequencyeffects.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
