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RESEARCH PAPERS

Comparative Analysis by the Displacement-Discontinuity Method of Two Energy Criteria of Fracture

[+] Author and Article Information
F. H. Cornet

Laboratoire d’Etude Geophysique des Structures Profondes, Institut de Physique du Globe de Paris, Université Paris VI, 4 Place Jussieu, Paris 75230, France

J. Appl. Mech 46(2), 349-355 (Jun 01, 1979) (7 pages) doi:10.1115/1.3424554 History: Received June 01, 1978; Revised December 01, 1978; Online July 12, 2010

Abstract

This paper discusses the applicability of the displacement-discontinuity technique to crack propagation analysis for plane strain conditions. Results derived from the maximum strain-energy release-rate hypothesis are compared to those obtained with the critical strain-energy-density-factor theory. It is shown that for tensile stress fields both theories give similar results but that they differ for compressive stress fields. Experimental results are more in support of the maximum strain-energy release-rate model.

Copyright © 1979 by ASME
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