期刊
ENGINEERING FRACTURE MECHANICS
卷 75, 期 18, 页码 5217-5228出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.engfracmech.2008.08.006
关键词
Fatigue crack growth; Plasticity; Finite element analysis
类别
资金
- National Science Foundation, People's Republic of China [10772063]
- Harbin Institute of Technology
- Harbin University of Science and Technology, China
The effects of applied compressive stress on the crack tip parameters and their implications on fatigue crack growth have been studied. Four center-cracked panel specimens with different crack lengths are analysed using finite element method, The results show that under tension-compression loading the local crack tip parameters are determined by two loading parameters. The two loading parameters are the maximum stress intensity and the maximum compressive stress in the applied stress cycle. Predictions of fatigue crack propagation behaviour based on the maximum stress intensity and maximum compressive stress agree well with experimental observations. (c) 2008 Elsevier Ltd. All rights reserved.
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