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RESEARCH PAPERS

Finite-Element Solution of Elastic-Plastic Boundary-Value Problems

[+] Author and Article Information
J. H. Prevost

Department of Civil Engineering, Princeton University, Princeton, N. J. 08544

T. J. R. Hughes

Department of Structural Mechanics, California Institute of Technology, Pasadena, Calif. 91125

J. Appl. Mech 48(1), 69-74 (Mar 01, 1981) (6 pages) doi:10.1115/1.3157594 History: Received February 01, 1980; Revised September 01, 1980; Online July 21, 2009

Abstract

It is demonstrated that elastic-plastic failure states may be captured in finite-element models by employing (1) the elastic-plastic material stiffness to form the global stiffness, (2) reduced/selective integration techniques to alleviate mesh “locking” due to incompressibility, and (3), in the case of symmetrical configurations, an imperfection in the form of a weak element.

Copyright © 1981 by ASME
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