Antiplane stress analysis of an isotropic wedge with multiple cracks

被引：33
作者：
Faal, RT [1 ]
Fotuhi, AR [1 ]
Fariborz, SJ [1 ]
Daghyani, HR [1 ]
机构：
[1] Amirkabir Univ Technol Polytech Tehran, Dept Mech Engn, Tehran 158754413, Iran
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2004年 / 41卷 / 16-17期
关键词：
antiplane deformation; multiple cracks; screw dislocation; stress intensity factor;
D O I：
10.1016/j.ijsolstr.2004.03.005
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Stress analysis is accomplished for an infinite isotropic wedge weakened by a screw dislocation. Two different cases of boundary conditions, i.e., traction-displacement and traction-traction, is considered for the wedge. The Mellin transform is utilized to solve the governing differential equation. The dislocation solution is employed for the analysis of wedges containing multiple cracks under antiplane deformation. The resultant system of singular integral equations is solved numerically to determine dislocation density on the cracks surfaces. This allows the calculation of crack opening displacements and stress intensity factors. The effects of wedge angle and cracks location and orientation on the stress intensity factors of straight cracks are investigated. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：4535 / 4550
页数：16
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