A Zener-Stroh crack in a fiber-reinforced composite material

被引：14

作者：

Xiao, ZM ^{[1
]}

Chen, BJ ^{[1
]}

Fan, H ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore

来源：

MECHANICS OF MATERIALS | 2000年 / 32卷 / 10期

关键词：

crack; stress intensity factor; inclusion; interaction; self-consistent three-phase model; composite material;

D O I：

10.1016/S0167-6636(00)00021-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Zener-Stroh crack is formed by coalescing a dislocation pileup and therefore is a net dislocation loaded crack. In this paper, the interaction between a Zener-Stroch crack and surrounding cylindrical fibers in a fiber-reinforced composite material has been investigated. The crack is located in the matrix and near a fiber, while the influence of other fibers on the crack is considered through the three-phase composite cylinder model. Using the solution of stress field for a single dislocation in a three-phase cylinder as the Green's function, the crack is represented by a continuous distribution of dislocations. A set of singular integral equations are thus formulated and solved numerically. The stress intensity factor (SIF) on the crack tip due to crack-inclusions interaction is calculated. The results show that the volume concentration of fibers has non-negligible influence on the SIF of the crack. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：593 / 606

页数：14

共 15 条

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