| Autor: |
Zhang, Lina, Gao, Qianqian, and, Shaojun Ma, Tong, Dihua |
| Zdroj: |
IOP Conference Series: Materials Science and Engineering; March 2018, Vol. 322 Issue: 1 p022003-022003, 1p |
| Abstrakt: |
In this paper, the distribution of the residual stress and equivalent plastic strain along the crack surfaces of the current crack with the crack growth is presented by finite element calculation. The residual stress intensity factor K res was calculated by using the weight function method (WFM), and the effective stress range ^S eff during the crack growth in the retardation zone is shown based the simulative calculation. Then, the effective stress range ^S eff with different R ol have been predicted by CORPUS model. The results indicate that the FEM simulative calculation and the CORPUS model prediction are agreement. They all show the crack growth retardation after an overload at different overload ratio R ol, and the effects of crack growth rate by the retardation. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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