The Micro-Stress-Field of Ceramic Composite with Eeutectic Interphase
Considering the interaction between nano-fiber and eutectic interphase, forth-phase mode is suggested to determine the local stress field distribution of three-phase element in eutectic composite ceramics. On the basis of the volumetric average strain, the effective flexibility increment tensor of eutectic ceramic composite is obtained. The remote stress boundary condition of the eutectic composite ceramics is accounted for getting the local stress field in matrix, interphase and nano-fiber. The results show the micro- stress field of eutectic ceramic rod is associated with the stiffness and the volume fractions of each component in eutectic ceramic rod, the shape of interphase and nano-fiber. The stresses in matrix will decrease due to the strong constraining effects of the eutectic interphase. The eutectic interphase make the eutectic composite ceramics strengthen.
Nano-fiber Eutectic composite ceramics Eutectic interphase Micro-stress field Size dependence
Zhong Guohui Ni Xinhua Liu Xiequan Zhao Lei
Shijiazhuang Mechanical Engineering College, Shijiazhuang, 050003, P.R.China
国际会议
第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)
重庆
英文
3328-3331
2009-08-01（万方平台首次上网日期，不代表论文的发表时间）