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.
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页码：852 / 855
页数：4
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