Theoretical Estimation of Fatigue Crack Initiation Life for Metallic Materials

被引：2
|
作者：
Li, Chunwang [1 ,2 ]
Sun, Qiang [2 ]
Yang, Youshe [2 ]
Li, Jing [2 ]
Zhang, Guibin [3 ]
Zhang, Zhongping [2 ]
机构：
[1] Northwestern Polytech Univ, Xian 710072, Peoples R China
[2] AF Engn Univ, Inst Sci, Xian 710051, Peoples R China
[3] Xiao Aeroengine Ltd Corp, Xian 710021, Peoples R China
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2013年 / 22卷 / 03期
关键词：
fatigue crack initiation life; fatigue ductility coefficient; fatigue ductility exponent; theoretical strain endurance limit; STRENGTH COEFFICIENT; STRAIN;
D O I：
10.1007/s11665-012-0307-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The main purpose of this paper is to theoretically estimate fatigue crack initiation life of metallic materials using the three-parameter model. For this purpose, correlations between the three parameters and conventional mechanical properties are established. The three parameters are fatigue ductility coefficient, fatigue ductility exponent, and theoretical strain endurance limit. Based on the correlations, the three parameters can be theoretically estimated, and thus the fatigue crack initiation life of metallic materials can be predicted in the absence of fatigue test data.
引用
收藏
页码：655 / 663
页数：9
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