Residual stress effects on fatigue crack growth in a Ti-6Al-4V friction stir weld

被引：60

作者：

Pasta, S. ^{[1
]}

Reynolds, A. P. ^{[2
]}

机构：

[1] Univ Palermo, Dipartimento Meccan, I-90128 Palermo, Italy

[2] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2008年 / 31卷 / 07期

关键词：

fatigue crack growth propagation; friction stir welding; residual stress; titanium alloy;

D O I：

10.1111/j.1460-2695.2008.01258.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Recent studies have illustrated a predominant role of the residual stress on the fatigue crack growth in friction stir welded joints. In this study, the role of the residual stress on the propagation of fatigue cracks orthogonal to the weld direction in a friction stir welded Ti-6Al-4V joint was investigated. A numerical prediction of the fatigue crack growth rate in the presence of the residual stresses was carried out using AFGROW software; reasonable correspondence between the predictions and the experimental results were observed when the effects of residual stress were included in the simulation.

引用

页码：569 / 580

页数：12

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