NUMERICAL SIMULATION OF CRACK GROWTH IN BRITTLE MATRIX OF PARTICLE REINFORCED COMPOSITES USING THE XFEM TECHNIQUE

作     者：Zhiyong Wang Li Ma Linzhi Wu Hongjun Yu 

作者机构：Center for Composite MaterialsHarbin Institute of TechnologyHarbin 150001China 

出 版 物：《Acta Mechanica Solida Sinica》 (固体力学学报（英文版）)

年 卷 期：2012年第25卷第1期

页      面：9-21页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 080102[工学-固体力学] 

基　　金：supported by the Program for New Century Excellent Talents in University (No. NCET-08-0152) the Program of Excellent Team in Harbin Institute of Technology 

主　　题：crack growth energy release rate crack-tip shielding and amplifying extended finite element method 

摘      要：Crack growth in particle reinforced composites is significantly influenced by the character of the reinforcement *** accurately deal with such problems,the extended finite element method （XFEM） was employed and *** simulations are accomplished by using a new domain expression of an interaction integral for evaluating stress intensity factors （SIFs）,and by adopting the maximum hoop stress criterion for crack-growth direction *** deflection/attraction mechanisms and their associated energy release rate variations are *** is shown that the applied numerical method allows a considerable flexibility and can be used in more general *** crack-tip shielding and amplifying behaviors are clearly observed.