Molecular dynamics simulation of bending crack initiation and growth of single crystal aluminium

被引：0

作者：

Shan, DB ^{[1
]}

Yuan, L ^{[1
]}

Guo, B ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2003年 / 13卷

关键词：

molecular dynamics simulation; bending crack; initiation; growth;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Molecular dynamics (MD) simulation was employed to research the mechanism of bending crack initiation and growth of single crystal aluminium. Bending model of single crystal Al was built by molecular dynamics technique, the bending crack initiation and growth was simulated with Morse potential. The results show that accumulation of strains energy produces the vacancy from the internal of crystal, cracks initiate from vacancy, and vacancy is combined to form nano-crack. Further growth of micro-crack is similar to that of macro-crack. Crack defect promotes crack initiation and growth.

引用

页码：140 / 143

页数：4

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