Fracture in Ceramic-Matrix Composites Reinforced with Strongly Bonded Metal Particles

被引：0
|
作者：
X. Kong
Y. Qiao
机构：
[1] University of Akron,Department of Civil Engineering
来源：
Mechanics of Composite Materials | 2005年 / 41卷
关键词：
ceramic-matrix composites; particle-reinforced composites; fracture toughness; failure criterion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The resistance of a ceramic matrix composite to the cleavage cracking across a field of strongly bonded, uniformly distributed metal particles is studied. The crack trapping and bridging effects of the metal particles are analyzed by means of calculating the strain energy and the traction work. An explicit expression for the critical energy release rate as a function of particle volume fraction has been obtained. The fracture resistance is independent of elastic properties of the matrix and the sample geometry and is predominantly determined by the size/spacing ratio of the particles. It is shown that the theoretical curves agree with experimental data quite well. The methodology developed in this article can be used in studying the fracture resistances of composites with high filler contents and irregular filler geometries.
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页码：205 / 216
页数：11
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