Effect of edge distance ratio on residual stresses induced by cold expansion and fatigue life of TC4 plates

被引：37

作者：

Liu, Jun ^{[1
]}

Wu, Henggui ^{[1
]}

Yang, Jinjie ^{[1
]}

Yue, Zhufeng ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710129, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2013年 / 109卷

基金：

中国国家自然科学基金;

关键词：

TC4 titanium alloy plate; Split-sleeve cold expanded holes; Residual stress; Critical plane approach; Edge distance ratio; HOLES; SIMULATION;

D O I：

10.1016/j.engfracmech.2013.05.012

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A finite element model is used to analyze the residual stress distribution around a cold expanded hole in a TC4 plate with various values of the edge distance ratio. The fatigue life of cold expanded hole is predicted using two models based on the critical plane approaches: SWT model and WB model. The predicted values are also compared with experimental results. The results show that the WB model achieves a better accuracy for cold expanded holes. When the edge distance ratio decreases, the residual tangential compressive stress and fatigue life of a cold expanded holes decrease. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：130 / 137

页数：8

共 44 条

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