Multiscale Modeling and Simulation of Crystal Plasticity Based on Dislocation Patterning in Polycrystal

Abstract:

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A multiscale model on dislocation patterning of cell structure and subgrain for polycrystal is newly developed on the basis of reaction-diffusion theory. A FD simulation for dislocation patterning and a FE one for crystal deformation are simultaneously carried out for a FCC polycrystal at large strain. Reflecting stress value on stress-effect coefficients, it is numerically predicted that the evolution of dislocation pattern in a polycrystal is different in response to the stress condition of each grain.

Info:

Periodical:

Key Engineering Materials (Volumes 340-341)

Edited by:

N. Ohno and T. Uehara

Pages:

205-210

DOI:

10.4028/www.scientific.net/KEM.340-341.205

Citation:

N. Yamaki et al., "Multiscale Modeling and Simulation of Crystal Plasticity Based on Dislocation Patterning in Polycrystal", Key Engineering Materials, Vols. 340-341, pp. 205-210, 2007

Online since:

June 2007

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Price:

$35.00

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