Prediction of the influence of flaws on the fatigue strength under biaxial loading

被引：6

作者：

McEvily, AJ

Endo, M ^{[1
]}

机构：

[1] Fukuoka Univ, Dept Mech Engn, Fukuoka 8140180, Japan

[2] Univ Connecticut, Dept Mat Sci & Engn, Storrs, CT 06269 USA

[3] Univ Connecticut, Inst Mat Sci, Storrs, CT 06269 USA

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2006年 / 28卷 / 5-6期

关键词：

fully reversed in-phase biaxial cyclic loading; fatigue strength; flaws; fatigue crack growth;

D O I：

10.1016/j.ijfatigue.2005.07.043

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A method for the prediction of the fatigue strength of flaw-containing components subjected to in-phase biaxial loading is presented based upon a knowledge of the materials fatigue strength in bending. A key aspect of the method is the relationship between stress concentration factors and stress intensity factors. The fatigue strength is taken to be that stress needed to overcome a materials resistance to crack propagation, and a material constant, r(e), is used to relate fatigue strength and the threshold for crack propagation. Continuous crack growth in components containing flaws occurs when the driving force for crack propagation exceeds the resistance to crack growth which is created by the need to exceed the threshold level as well as to overcome the effects of crack closure. Good agreement between the predictions and experimental results was obtained. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：504 / 507

页数：4

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