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
收藏
页码：205 / +
页数：2
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