The compressive stress effect on fatigue crack growth under tension-compression loading

被引：46
作者：
Zhang, J. [1 ]
He, X. D. [1 ]
Sha, Y. [2 ]
Du, S. Y. [1 ]
机构：
[1] Harbin Inst Technol, Composite Mat & Struct Res Ctr, Harbin 150001, Peoples R China
[2] Harbin Univ Sci & Technol, Sch Mech & Power Engn, Harbin 150080, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2010年 / 32卷 / 02期
基金：
美国国家科学基金会;
关键词：
Crack propagation; Compressive loading; Strain hardening; Fatigue crack closure; Finite element analysis; THRESHOLD; CLOSURE;
D O I：
10.1016/j.ijfatigue.2009.07.008
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Elastic-plastic finite element analyses have been performed to study the compressive stress effect on fatigue crack growth under applied tension-compression loading. The near crack tip stress, displacement and plastic zone size were obtained for a kinematic hardening material. The results have shown that the near crack tip local stress, displacement and reverse plastic zone size continue to change with the change of the applied compressive stress. Based on the finite element analysis results, a fatigue crack propagation model has been developed. Predictions of fatigue crack propagation behaviour under tension-compression loading agreed well with experimental observations. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码：361 / 367
页数：7
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