Strength Prediction Model of a Particle-Reinforced Shellproof Ceramic Composite

被引：2
|
作者：
Ni, X. H. [1 ]
Chen, C. [1 ]
Liu, X. Q. [1 ]
Zhang, S. Q. [1 ]
机构：
[1] Mech Engn Coll, Shijiazhuang, Peoples R China
来源：
STRENGTH OF MATERIALS | 2014年 / 46卷 / 02期
基金：
中国国家自然科学基金;
关键词：
strength; shellproof ceramic; particle; dislocation pile-up; crack extension; MATRIX COMPOSITES; METAL PARTICLES;
D O I：
10.1007/s11223-014-9543-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
On the basis of the microstructure of particle-reinforced shellproof ceramic composite, and the intergranular fracture feature, a dislocation pile-up fracture model of the small-particle ceramic composite is developed, the mechanism of formation, growth and coalescence of microcracks. The complex effect of the small particle pull-out and large particle cracking is concerned, when constructing the crack extension fracture model. Thereafter, the influence of particles' volume fraction and matrix grain diameter on fracture strength is studied. The experimental data shows that the proposed strength prediction model is successful and can be generally applied.
引用
收藏
页码：250 / 255
页数：6
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