Strain Hardening at Large Strains as Predicted by Dislocation Based Polycrystal Plasticity Model

[+] Author and Article Information
László S. Tóth, Alain Molinari

Laboratoire de Physique et Mécanique des Matériaux, ISGMP, Université de Metz, Ile du Saulcy, 57045 Metz, Cedex 1, France

Yuri Estrin

Institut für Werkstoffkunde und Werkstofftechnik, Technische Universität Clausthal Agricolastr. 6, 38678 Clausthal-Zellerfeld, Germanye-mail: juri.estrin@tu-clausthal.de

J. Eng. Mater. Technol 124(1), 71-77 (Jun 26, 2001) (7 pages) doi:10.1115/1.1421350 History: Received December 12, 2000; Revised June 26, 2001
Copyright © 2002 by ASME
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The geometry of the cell structure
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Equivalent stress–equivalent strain curves predicted by the self consistent model
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Rate of hardening as a function of stress (“Kocks-Mecking-plot”) showing Stages III and IV (self-consistent polycrystal model)
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Stress-strain curves in terms of von Mises quantities predicted by the self consistent model
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Comparison of experimental 18 and predicted average dislocation densities
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Dislocation densities predicted by the self consistent model




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