On crack-wake debonding in fiber reinforced ceramics

被引：17

作者：

Chiang, YC ^{[1
]}

机构：

[1] Chinese Culture Univ, Dept Mech Engn, Taipei, Taiwan

来源：

ENGINEERING FRACTURE MECHANICS | 2000年 / 65卷 / 01期

关键词：

interfacial debonding; matrix cracking; ceramics; composites;

D O I：

10.1016/S0013-7944(99)00130-7

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, the effect of interfacial debonding in the wake of a crack on the stress for matrix cracking is studied for unidirectional fiber reinforced ceramics. A simple shear-lag model is adopted to calculate the stress and strain fields in the fiber and the matrix. A criterion for crack-wake debonding is proposed by treating the debonding process as a particular crack propagation problem. Then, by using an energy balance approach the formulation of the matrix cracking stress of an infinite fiber-bridged crack is derived. The theoretical results are compared with experimental data of SiC/borosilicate, SiC/LAS and C/borosilicate ceramic composites. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：15 / 28

页数：14

共 18 条

[1] THEORY OF MULTIPLE FRACTURE OF FIBROUS COMPOSITES [J].