The influence of an interphase on the deflection of a matrix crack in a ceramic-matrix composite

被引：21
作者：
Lacroix, C
Leguillon, D
Martin, E
机构：
[1] Univ Paris 06, LMM, CNRS, UMR 7607, F-75015 Paris, France
[2] Univ Bordeaux 1, LGM, UPRES 496, IUT A, F-33405 Talence, France
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2002年 / 62卷 / 04期
关键词：
ceramic-matrix composites; debonding; interface; brittle fracture;
D O I：
10.1016/S0266-3538(01)00143-9
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The main purpose of this paper is to develop a criterion which is able to predict a particular mechanism of matrix crack deflection which often occurs in brittle-matrix composites: an interface debonding ahead of the matrix crack. The problem is solved with the help of an energetic approach which couples an asymptotic and a numerical analysis. It is further extended by taking into account the presence of an interphase introduced between the fibre and the matrix. Numerical results are then used to describe a crack deflection mechanism within a model bi-material (consisting of two dense alumina substrates separated by a porous alumina interlayer) and a SiC/SiC composite. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：519 / 523
页数：5
相关论文
共 16 条
12