Molecular dynamics simulations of DFZ

被引：0
|
作者：
Zhou, GH [1 ]
Lu, H
Wan, FR
Chu, WY
Zhou, FX
机构：
[1] Univ Sci & Technol Beijing, Dept Mat Phys, Beijing 100083, Peoples R China
[2] Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China
来源：
ACTA MECHANICA SINICA | 1997年 / 13卷 / 04期
关键词：
copper; molecular dynamics simulation; DFZ;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Dislocation emission from the crack tip in copper under mode II loading is simulated with molecular dynamics method. After 26 partial dislocations are emitted and then relaxed to reach the equilibrium under the constant displacement, the double pile-ups (including an inverse pile-up and a pile-up) are formed. i.e., the first dislocation is piled up before the obstruction, and the last dislocation is piled up ahead of the crack tip. These results conform to the TEM observations.
引用
收藏
页码：377 / 382
页数：6
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