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RESEARCH PAPERS

Mixed Mode Ductile Fracture Studies With Nonproportional Loading Based on Continuum Damage Mechanics

[+] Author and Article Information
June Wang, C. L. Chow

Department of Mechanical Engineering, University of Hong Kong, Hong Kong

J. Eng. Mater. Technol 111(2), 204-209 (Apr 01, 1989) (6 pages) doi:10.1115/1.3226455 History: Received April 08, 1988; Online September 15, 2009

Abstract

Service loading imposed on engineering structures is often arbitrary or nonproportional. The paper presents an investigation of examining the effects of proportional and nonproportional loadings on the fracture behavior of mixed mode fracture. The anisotropic model of continuum damage mechanics capable of taking into account the nonproportional loading condition recently developed by the authors is employed and the computed results reveal that different modes of proportional and nonproportional loading have marked effects on the fracture load, angle of crack initiation, overall damage, and directional change of the principal planes of stress and damage.

Copyright © 1989 by ASME
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