Residual Stress Field and Toughening Mechanism for Composite Ceramic with Eutectic Interphases
The four-phase-model method is used to study residual stress field of composite ceramic with eutectic interphases.Considering matrix,Interphase and fiber inclusion are isotropy,the residual stress distribution of composite ceramic with eutectic interphase is obtained.The size dependence of residual stresses is analyzed.The residual-stress-field in the eutectic ceramic rod relates to the stiffness,thermal expansion coefficients,shape and volume content of inclusions and interphases in the eutectic ceramic rod.On basis of the residual-stress-field in the eutectic ceramic rod,the frictional force on the boundary of the eutectic ceramic rod can be computed.Then the frictional work is given.The toughening mechanism of residual stresses is gotten.The result shows that the toughening value is dependent on the size of fiber inclusion in the eutectic rod.
eutectic ceramic rod fiber inclusion residual stress field toughening mechanism size dependence
Xiequan Liu Yunwei Fu Xinhua Ni Baohong Han
Department of Basic Course,Mechanical Engineering College,Shijiazhuang 050003,China
国际会议
西安
英文
1-5
2012-10-01（万方平台首次上网日期，不代表论文的发表时间）