Fatigue life calculation for a specimen with an impact pit considering impact damage, residual stress relaxation and elastic-plastic fatigue damage

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• 作者：Zhixin Zhan^a ; Weiping Hu^a ; ^{huweiping@buaa.edu.cn} ; Fei Shen^b ; Qingchun Meng^a ; Jing Pu^a ; Zhidong Guan^a
• 关键词：Damage mechanics ; Fatigue life ; Impact damage ; Residual stress ; Elastic-plastic
• 刊名：International Journal of Fatigue
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：96
• 期：Complete
• 页码：208-223
• 全文大小：3835 K
• 卷排序：96

文摘

A new method to calculate fatigue life of specimen with impact pit is proposed. The initial impact damage and elastic-plastic fatigue damage are considered. The residual stress relaxation is investigated in this method. The calculated results agree well with the experimental result.