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RESEARCH PAPERS

Nonlocal Behavior of Elastoplastic Metals: Theory and Results

[+] Author and Article Information
D. Muller, X. Lemoine, M. Berveiller

Laboratoire de Physique et Mécanique des Matériaux, (URA CNRS 1215), ENIM, Ile du Saulcy, 57045—Metz, France; Laboratoire d’Etude et de Développement des Produits Plats, SOLLAC, avenue des Tilleuls, 57191 — Florange, France

J. Eng. Mater. Technol 116(3), 378-383 (Jul 01, 1994) (6 pages) doi:10.1115/1.2904301 History: Received August 03, 1993; Revised January 12, 1994; Online April 29, 2008

Abstract

In this paper, a nonlocal theory based upon crystalline plasticity is used in case of a dislocation cell structure induced during plastic straining and represented by a two-phase material. By describing convective dislocation motion (which appears to be a basic feature of hardening) and storage mechanisms, under some simplifying assumptions, numerical simulations exhibit significant effects on the intragranular heterogeneization, as well as on global results like the Bauschinger effect.

Copyright © 1994 by The American Society of Mechanical Engineers
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