Path prediction of I plus III mixed mode fatigue crack propagation

被引：5

作者：

Li, H. F. ^{[1
]}

Qian, C. F. ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, Beijing 100029, Peoples R China

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2012年 / 35卷 / 02期

关键词：

crack path prediction; crack propagation rate; fatigue crack propagation; mixed mode crack; GROWTH SIMULATION; DBEM; FEM; TORSION;

D O I：

10.1111/j.1460-2695.2011.01605.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this paper, compact tension specimens with tilted cracks under monotonic fatigue loading were tested to investigate I + III mixed mode fatigue crack propagation in the material of No. 45 steel with the emphasis on the propagation rate expression and the path prediction. It is found that during the mode transformation process, the crack propagation rate is still controlled by the mode I stress intensity factor; and Paris equation also holds for the relationship between and ?KI. Crack propagation path can be predicted only when both the crack mode transformation rate and propagation rate are available.

引用

页码：185 / 190

页数：6

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