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RESEARCH PAPERS

Continuous Damage Mechanics Revisited: Basic Concepts and Definitions

[+] Author and Article Information
D. Krajcinovic

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

J. Appl. Mech 52(4), 829-834 (Dec 01, 1985) (6 pages) doi:10.1115/1.3169154 History: Received February 01, 1985; Online July 21, 2009

Abstract

The paper proposes a geometrically consistent representation for the set of internal variables defining an arbitrary distribution of flat, planar microcracks. A special averaging procedure in conjunction with a characteristic length leads to an experimentally identifiable measure or damage. The model makes an essential distinction between the active and passive microcrack systems. The progressive deterioration of the material is modeled by a combination of nucleation (activation of new systems) and continued growth or cracks in already active systems.

Copyright © 1985 by ASME
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