The effects of bonded retarder on fatigue crack growth in 7085 Aluminium alloy

被引：2
|
作者：
Ma, Yu E. [1 ]
He, Wenhao [1 ]
Yun, Shuang [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China
来源：
HIGH PERFORMANCE STRUCTURES AND MATERIALS ENGINEERING, PTS 1 AND 2 | 2011年 / 217-218卷
基金：
中国国家自然科学基金;
关键词：
bonded crack retarder; fatigue crack growth; residual stress;
D O I：
10.4028/www.scientific.net/AMR.217-218.1135
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
To improve damage tolerance performance, GLARE was used as bonded crack retarders in this paper. Fatigue tests were run with unbonded and bonded samples; then test results between them was compared. Thermal residual stresses had been studied. It was found that bonded crack retarders can improve damage tolerance performance and capability. Thermal residual stresses have a detrimental effect on the fatigue crack growth rates by means of increasing the effective R-ratio applied on the aluminium substrate. Finite element analysis was carried out and the result was in good agreement with the experimental data.
引用
收藏
页码：1135 / +
页数：2
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