A nonlinear fatigue damage‐healing model for copper film by LSP
A nonlinear fatigue damage‐healing model for copper film by LSP
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DOI：
10.1111/ffe.12203
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发表时间：
2014-11
影响因子：
3.7
通讯作者：
L-H. Zhang;D. Shang;X.D. Liu;Y.J. Sun;YB Guo;Feng-Zhu Liu;T. Chen
中科院分区：
文献类型：
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作者：
L-H. Zhang;D. Shang;X.D. Liu;Y.J. Sun;YB Guo;Feng-Zhu Liu;T. Chen
The healing variable and enhancement variable were first defined by the fatigue ductility, and then based on the relationship of the damage variable, the healing variable and the enhancement variable, a nonlinear fatigue damage-healing model was proposed for predicting the fatigue life of the healed copper film by laser shock peening (LSP). The nonlinear fatigue damage cumulative process was considered in the model for the original specimen without LSP under constant and variable amplitude loadings. The results showed that the proposed nonlinear fatigue damage-healing model can predict the residual fatigue life for the damaged copper film specimen well.
