Mixed mode fatigue crack growth in test coupons made from 2024-T3 aluminum

被引：10
|
作者：
Jeong, DY [1 ]
机构：
[1] US Dept Transportat, Res & Special Programs Adm, Volpe Natl Transportat Syst Ctr, Cambridge, MA 02142 USA
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2004年 / 42卷 / 01期
关键词：
stress intensity factor; strain energy density; maximum principal stress;
D O I：
10.1016/j.tafmec.2004.06.003
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, two different fracture criteria are applied to determine the crack trajectory or angle of crack propagation in test specimens containing inclined cracks emanating from open holes. Also, different crack growth rate models are assumed for each criterion. The maximum principal stress criterion is used with a crack growth-rate equation based on an effective stress intensity factor. The strain energy density criterion is used with a crack growth-rate equation corresponding to an effective strain energy density factor. The crack growth-rate models for each criterion were constructed using unpublished fatigue crack growth data for 2024-T3 aluminum. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：35 / 42
页数：8
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