On Three-dimensional Fatigue Crack Propagation under Constant Amplitude Loading

被引：0

作者：

He Yuting ^{[1
]}

Shu Wenjun ^{[1
]}

Liu Renyu ^{[1
]}

Cui Ronghong ^{[1
]}

机构：

[1] AF Engn Univ, Coll Engn, Xian 710038, Shaanxi, Peoples R China

来源：

MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5 | 2010年 / 97-101卷

关键词：

Tri-axial stress state; Crack propagation rate; Fatigue life; Constant amplitude loading; CLOSURE;

D O I：

10.4028/www.scientific.net/AMR.97-101.852

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The equation of fatigue crack propagation rate is indispensable to precisely predict the fatigue life of structure containing three-dimensional crack under constant amplitude loading. Considering the crack closure effects and thickness effects in real structures, the equation of fatigue crack propagation rate under tri-axial stress state is presented. And the fatigue propagation lives of LY12-BCZYU aluminium alloy plate specimens with central through crack are predicted by this equation and validated by experimental results. Validation against calculations by the model and experimental data shows a good agreement.

引用

页码：852 / 855

页数：4

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