Deformation of cross-ply composite laminates with cracked ceramic matrix

被引：4
|
作者：
Kashtalyan, MY [1 ]
机构：
[1] Univ Aberdeen, Aberdeen AB9 1FX, Scotland
来源：
INTERNATIONAL APPLIED MECHANICS | 2005年 / 41卷 / 01期
关键词：
cross-ply ceramic-matrix composite laminates; biaxial loading; tunneling macrocracks; equivalent-constraint model;
D O I：
10.1007/s10778-005-0054-z
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The deformation of cross-ply ceramic-matrix composite laminates under biaxial loading is studied theoretically. Experimentally, microscopic damage evolution in cross-ply ceramic-matrix composite laminates has not been well characterized yet, mainly due to the difficulties involved in testing of anisotropic plates under biaxial loading. It is assumed that the initial damage mechanism observed in ceramic-matrix composite laminates is the formation of tunneling macrocracks both in the 90 degrees- and 0 degrees-plies. The paper addresses the stiffness-deterioration behavior of cross-ply ceramic-matrix laminates with transverse and longitudinal macrocracks. The analysis is based on the equivalent-constraint model of a damaged laminate. Numerical results for SiC/CAS cross-ply laminates of various lay-ups are presented and discussed.
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页码：24 / 31
页数：8
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