Paper Title:

Fatigue Crack Propagation Experiment and Simulation on 7050 Aluminum Alloy

Periodical Key Engineering Materials (Volume 464)
Main Theme Functional Manufacturing Technologies and Ceeusro II
Edited by Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen
Pages 560-563
DOI 10.4028/www.scientific.net/KEM.464.560
Citation Xu Dong Ren et al., 2011, Key Engineering Materials, 464, 560
Online since January, 2011
Authors Xu Dong Ren, Yong Zhuo Huangfu, Yong Kang Zhang, Da Wei Jiang, Tian Zhang
Keywords Fatigue Life, FRANC2D, Laser Shock Processing (LSP)
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Abstract

In this paper, an experiment of fatigue crack propagation in 7050 aluminum alloy was presented. Laser shock processing (LSP) is used to shock the crack surface. Compared with the specimen without LSP, the fatigue life after LSP increased greatly. The simulation of the fatigue crack growth in 7050 aluminum alloy is implemented in FRANC2D. Simulating result is in accordance with the result of the experiment well. Laser shock processing increases the fatigue life and reduce fatigue crack growth rate, it has good prospect on the study of crack arrestment.