Constitutive Equations for Damaging Materials

[+] Author and Article Information
D. Krajcinovic

Department of Civil Engineering, Mechanics, and Materials, University of Illinois at Chicago, Chicago, Ill. 60680

J. Appl. Mech 50(2), 355-360 (Jun 01, 1983) (6 pages) doi:10.1115/1.3167044 History: Received January 01, 1982; Online July 21, 2009


The paper focuses on the derivation of the constitutive law for a material containing flat, planar microcracks. The damage law is derived from the dissipation potential in conjunction with the orthogonality principle. The dissipation potential is shown to exist in the space of conjugate thermodynamic forces related to the stress intensity factors. Both brittle and ductile materials are considered within the framework of the small deformation theory and the time-independent processes.

Copyright © 1983 by ASME
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