Multiscale modeling and simulation of crystal plasticity based on dislocation patterning in polycrystal

被引：3

作者：

Yamaki, Naoshi ^{[1
]}

Aoyagi, Yoshiteru ^{[2
]}

Shizawa, Kazuyuki ^{[2
]}

机构：

[1] Keio Univ, Grad Sch Sci & Technol, Kohoku Ku, 3-14-1 Hiyoshi, Yokohama, Kanagawa 2238522, Japan

[2] Keio Univ, Tokyo 108, Japan

来源：

ENGINEERING PLASTICITY AND ITS APPLICATIONS FROM NANOSCALE TO MACROSCALE, PTS 1 AND 2 | 2007年 / 340-341卷

关键词：

multiscale modeling; dislocation patterning; crystal plasticity; cell structure; subgrain; polycrystal;

D O I：

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

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页码：205 / +

页数：2

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