Quasicontinuum models of interfacial structure and deformation

被引：250

作者：

Shenoy, VB ^{[1
]}

Miller, R

Tadmor, EB

Phillips, R

Ortiz, M

机构：

[1] Brown Univ, Div Engn, Providence, RI 02912 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] CALTECH, Grad Aeronaut Labs, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.80.742

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Microscopic models of the interaction between grain boundaries (GBs) and both dislocations and cracks are of importance in understanding the role of microstructure in altering the mechanical properties of a material. A recently developed mixed atomistic and continuum method is reformulated to allow for the examination of the interactions between GBs, dislocations, and cracks. These calculations elucidate plausible microscopic mechanisms for these defect interactions and allow for the quantitative evaluation of critical parameters such as the force needed to induce GB migration. [S0031-9007(97)05134-X].

引用

页码：742 / 745

页数：4

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