Evaluation of interface fracture toughness in SiC fiber reinforced titanium matrix composite

被引：13
|
作者：
Yuan Mei-ni [1 ]
Yang Yan-qing [1 ]
Huang Bin [1 ]
Li Jian-kang [1 ]
Chen Yan [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2008年 / 18卷 / 04期
基金：
中国国家自然科学基金;
关键词：
push out test; interface fracture toughness; finite element analysis (FEA); SiCf/Ti composite;
D O I：
10.1016/S1003-6326(08)60160-0
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The finite element method based on the equivalent domain integral technique was developed to simulate the push out test and evaluate the interfacial fracture toughness of SiC reinforced titanium matrix composites. A special subroutine was introduced while modeling the push-out test to control interfacial failure process. In addition, the residual stresses, Poisson ratio and friction stresses were all considered in the finite element analysis and the interface debonding was described as a continuous process. The results show that the interfacial fracture toughness of SiC/Timetal-834 is about 50 J/m(2). Moreover, the effects of various parameters on the interfacial fracture toughness and the variations of energy release rates at both ends of the specimen were analyzed in detail.
引用
收藏
页码：925 / 929
页数：5
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