Simplified model for the fatigue growth analysis of surface cracks in round bars under mode I

被引：116

作者：

Couroneau, N ^{[1
]}

Royer, J ^{[1
]}

机构：

[1] Ecole Cent Nantes, Lab Mecan & Mat, F-44321 Nantes, France

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 1998年 / 20卷 / 10期

关键词：

cyclic loading; fatigue crack growth; round bar; surface crack;

D O I：

10.1016/S0142-1123(98)00037-1

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

The fatigue growth of an edge flaw in a round bar under cyclic tension or bending loading is examined, using a two-parameter numerical model. First, it is shown that the crack front evolution is defined by a very small number of parameters, which varies during crack growth. Approximated solutions for both the crack propagation path and the stress intensity factor are derived, and the fatigue predictions using this simple analytical method are finally compared with the numerical results. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：711 / 718

页数：8

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