The Analysis of Load Sharing of Inclusions With Different Shapes and Properties for Hybrid Ceramic Composites
Based on Eshelbys equivalent inclusion approach and Mori-Tanaka theory,a formula (EMT) to calculate the average stress over the each phase of the composites including multi-phase inclusions with different shapes and mechanical properties is proposed in this paper.A three-dimensional finite element model (FEM) for a representative volume element including two kinds of fiber- like inclusions and a spherical inclusion is established by using the commercial software.The average stresses in each inclusion are calculated and compared well with those from the proposed formula.The results show that the stresses in spherical inclusion appear to nearly keep constant with the increase of fiber volume fraction,but the stresses in fiber-like inclusions vary obviously,which reflect that fiber-like inclusions bear higher load prior to the spherical inclusion,and appear to have stronger effect on improving the strength of ceramic matrix composites.
Multi-shape inclusions Mori-Tanaka method Equivalent inclusion approach Load sharing Ceramic composites
Dongmei Luo Wenxue Wang Shigeo Takezono
Department of Civil Engineering,Foshan University,Foshan 528000,China Research Institute for Applied Mechanics,Kyushu University,Kasuga-Koen 6-1,Fukuoka,816-8580,Japan Department of Mechanical Engineering,Toyohashi University of Technology,1-1 Hibarigaoka Tenpaku-cho,
国际会议
The tenth China-Japan joint conference on Composite Materials (第10届中日复合材料学术会议(CJJCC-10))
成都
英文
168-171
2012-09-08（万方平台首次上网日期，不代表论文的发表时间）