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RESEARCH PAPERS

Fatigue Crack Growth Behavior of Explosively-Bonded Clad Steel Plates

[+] Author and Article Information
S. Takezono, M. Satoh, K. Takita

Department of Mechanical Engineering, Kumamoto University, Kurokami, Kumamoto 860, Japan

J. Eng. Mater. Technol 103(1), 36-45 (Jan 01, 1981) (10 pages) doi:10.1115/1.3224970 History: Received October 17, 1979; Online September 15, 2009

Abstract

Fatigue crack growth behavior of explosively-bonded clad steel plates was studied by making fatigue crack growth tests under a constant stress intensity factor range and carrying out a finite element elasto-plastic analysis of fatigue crack growth. Effects of an initial residual stress, a hardening layer and a yielding point of each original material on crack propagation were examined. It was concluded from the examination that for explosively clad materials which had a clad interface, residual stresses and a hardening layer near the interface, the fatigue crack growth rates were not related to the stress intensity factor range, but closely related to a maximum strain range at the crack-tip.

Copyright © 1981 by ASME
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