An unstressed screw dislocation pileup against two circular elastic inhomogeneities

被引：1

作者：

Wang, Xu ^{[1
]}

Schiavone, Peter ^{[2
]}

机构：

[1] East China Univ Sci & Technol, Sch Mech & Power Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

[2] Univ Alberta, Donadeo Innovat Ctr Engn 10 203, Dept Mech Engn, Edmonton, AB T6G 1H9, Canada

来源：

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2022年 / 259卷

关键词：

Unstressed dislocation pileup; Two circular inhomogeneities; Equilibrium condition; Singular integral equation; Dislocation distribution function; UPS; INTERFACE;

D O I：

10.1016/j.ijsolstr.2022.112011

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We use complex variable techniques and the theory of singular integral equations to study the problem associated with an unstressed pileup of identical parallel screw dislocations against two circular elastic inhomogeneities. Each of the circular inhomogeneities is assumed to be harder than the surrounding matrix rendering them repulsive to the nearby dislocations. Consequently, the pileup of dislocations can assume an equilibrium configuration even in the absence of remote loading. The condition required for equilibrium is formulated in terms of a singular integral equation which is solved numerically to arrive at the dislocation distribution function.

引用

页数：7

共 22 条

[1] EFFECT OF SHEAR MODULUS ON STRESS DISTRIBUTION PRODUCED BY A PLANAR ARRAY OF SCREW DISLOCATIONS NEAR A BI-METALLIC INTERFACE [J].