The fully plastic J-integral of corner cracks at a hole in a plate

被引：0
|
作者：
Gao, Q [1 ]
Huang, ZZ [1 ]
机构：
[1] SW JIATONG UNIV,INST APPL MECH,CHENGDU 610031,PEOPLES R CHINA
来源：
ACTA MECHANICA SOLIDA SINICA | 1997年 / 10卷 / 02期
关键词：
corner crack; line-spring model; fully plastic; J-integral;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The line-spring model of surface cracks is applied to the fully plastic analysis of corner cracks at a hole in a plate. The generalized fully plastic constitutive relations and the fully plastic J-integral, as well as its coefficients in polynomial expressions are given. The model obtained is incorporated into a finite element program. The corner cracks at a hole in a plate subjected pure tensions are calculated by the present model. The fully plastic J-integral is then estimated. The results obtained show that the line-spring model is effective for the analysis of corner cracks. The influence of the crack depth and the hardening exponent on the fully plastic J-integral is also discussed.
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页码：131 / 137
页数：7
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