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RESEARCH PAPERS

On the Estimation of Energy Release Rates

[+] Author and Article Information
R. Abeyaratne

College of Engineering, Michigan State University, East Lansing, Mich. 48824

J. Appl. Mech 50(1), 19-23 (Mar 01, 1983) (5 pages) doi:10.1115/1.3166992 History: Received June 01, 1982; Online July 21, 2009

Abstract

The energy release rate associated with the Mode I and Mode III crack problems for an infinite, nonlinearly elastic, incompressible body are estimated. The calculation adopts an approximation that is a natural extension of the small-scale yielding concept to problems involving moderate levels of loading. The results are compared with available exact and numerical solutions and the agreement is found to be remarkably good. The scheme used here, based on the theory of small deformations superposed on a finite deformation, can be utilized to estimate the energy release rate in many other crack problems.

Copyright © 1983 by ASME
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