A theoretical model for predicting fatigue crack growth rates in fibre-reinforced metal laminates

被引：41

作者：

Guo, YJ ^{[1
]}

Wu, XR ^{[1
]}

机构：

[1] Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 1998年 / 21卷 / 09期

关键词：

fibre-reinforced metal laminates; fatigue crack growth rate; fatigue lives; bridging traction; delamination; stress intensity factor; weight function;

D O I：

10.1046/j.1460-2695.1998.00076.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper is concerned with the development and application of an analytical model for predicting fatigue crack growth in fibre-reinforced metal laminates (FRMLs). An analytical model for the distribution of bridging traction is first introduced. Based upon observations of the delamination shapes in FRMLs under fatigue loading and a model for characterizing delamination growth in FRMLs, a model for predicting crack growth rates in CCT specimens of FRMLs is developed. The model is applied to two GLARE laminates (2/1, 3/2 lay-ups) under various cyclic stress levels and stress ratios. The predicted crack growth rates are compared with experimental data. The predicted crack growth rates agree well with the experimental results.

引用

页码：1133 / 1145

页数：13

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