Dislocation pileups: topological features of stresses and strains

被引：2

作者：

Borisova, SD ^{[1
]}

Naumov, II ^{[1
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Inst Strength Phys & Mat Sci, Tomsk 634021, Russia

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2001年 / 35卷 / 03期

关键词：

Boundary conditions - Elasticity - Fracture mechanics - Strain - Stress analysis - Structural analysis - Topology;

D O I：

10.1016/S0167-8442(01)00047-7

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

When averaged over half-spaces, the elastic stress and strain fields from dislocation pileups are shown to take a peculiar topological features of the form y/\y\, i.e., they undergo an abrupt change when passing through the pileup plane. The average fields appear to be equivalent to the Somigliana dislocations and provides a description of strain boundaries in crystals such as the torsion boundary which represents a surface where the average rotation field experience a topological jump. (C) 2001 Published by Elsevier Science Ltd.

引用

页码：237 / 242

页数：6