FATIGUE CRACK-GROWTH IN MIXED-MODE LOADING

被引：29
|
作者：
CHEN, WR
KEER, LM
机构：
[1] Department of Mechanical Engineering, The Technological Institute, Northwestern University, Evanston, IL
来源：
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 1991年 / 113卷 / 02期
关键词：
D O I：
10.1115/1.2903396
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, a direct approach based on the mixed mode Dugdale model, the accumulated plastic displacement criterion for crack propagation and the cyclic J-integral concept is used to develop equations to predict the mixed mode fatigue crack growth. A fourth-power stress intensity factor crack growth equation and a second-power cyclic J-integral equation are developed under conditions of mixed mode loading and small-scale yielding. By comparing the present analysis with the experimental results, the proposed fatigue crack growth rate equations lead to results that appear to yield reasonable magnitudes for various loading conditions.
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页码：222 / 227
页数：6
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