Equivalent damage-healing approach to residual fatigue life prediction for copper film by laser repair-Reference-Cited by-同舟云学术

Equivalent damage-healing approach to residual fatigue life prediction for copper film by laser repair

Published:2014-09-23 Issue:5 Volume:24 Page:750-766
ISSN:1056-7895
Container-title:International Journal of Damage Mechanics
language:en
Short-container-title:International Journal of Damage Mechanics

Author:

Liu Xiao-Dong¹,Shang De-Guang¹,Zhang Li-Hong¹,Guo Yu-Bo¹,Sun Yu-Juan¹,Chen Tao²,Guo YB³,Barkey ME⁴

Affiliation:

1. College of Mechanical Engineering and Applied Electronics Technology, Institute of Laser Engineering, Beijing University of Technology, Beijing, P. R. China

2. Institute of Laser Engineering, Beijing University of Technology, Beijing, P. R. China

3. Department of Mechanical Engineering, The University of Alabama, Tuscaloosa, AL, USA

4. Department of Aerospace Engineering and Mechanics, The University of Alabama, Tuscaloosa, AL, USA

Abstract

A healing method for fatigue damage was investigated by laser shock peening and laser irradiation with excimer laser for polycrystalline copper film. It is found that the sum of the consumed fatigue ductility and the total fatigue ductility for the damaged specimen after both laser treatments is equal to the total fatigue ductility for the undamaged specimen after both laser treatments. The evolution of the damage healing can be replaced by that for the undamaged specimen after laser treatment. Based on the equivalent fatigue damage evolution, a residual fatigue life prediction method is proposed during the damage-healing process for the copper specimen. The predicted lives by the proposed method agree well with the experimental results.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science,Computational Mechanics

Link

http://journals.sagepub.com/doi/pdf/10.1177/1056789514552505

Reference30 articles.

1. A micro-damage healing model that improves prediction of fatigue life in asphalt mixes

2. A repair process for fatigue damage using plasma nitriding

3. Optimum laser surface treatment of fatigue damaged Ti–6Al–4V alloy

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5. Improvement of Mechanical Fatigue Strength by Optimization of Laser Surface Treatment

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