Numerical Modeling of Dislocation-Grain Boundary Interaction and Continuum Mechanics Analyses for Mechanical Properties of Fine Grained Metals

Abstract:

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Macroscopic mechanical response of metal polycrystal with mean grain diameter of 0.2 to 5 microns are simulated by a strain gradient crystal plasticity software code which incorporates some phenomenological models for dislocation accumulation and annihilation, as well as dislocation-grain boundary interactions. Obtained results of macroscopic stress-strain relation show significant increase of yield stress and strain hardening ratio for fine grained specimens.

Info:

Periodical:

Materials Science Forum (Volumes 584-586)

Edited by:

Yuri Estrin and Hans Jürgen Maier

Pages:

1063-1068

DOI:

10.4028/www.scientific.net/MSF.584-586.1063

Citation:

T. Ohashi et al., "Numerical Modeling of Dislocation-Grain Boundary Interaction and Continuum Mechanics Analyses for Mechanical Properties of Fine Grained Metals", Materials Science Forum, Vols. 584-586, pp. 1063-1068, 2008

Online since:

June 2008

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Price:

$35.00

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