Dislocation inside a piezoelectric media with an elliptic inhomogeneity

作者：Huang, ZY; Kuang, ZB^*

来源：International Journal of Solids and Structures, 2001, 38(46-47): 8459-8479.

DOI：10.1016/S0020-7683(01)00062-2

• piezoelectric
• dislocation
• inhomogeneity
• Green function
• Stroh formula

In this paper. Green functions for an infinite piezoelectric media with an elliptic piezoelectric inhomogeneity are given for a generalized electro-mechanical force and a generalized electro-mechanical line dislocation that may be located outside, inside or on the interface of elliptic boundary of inhomogeneity. Expressions of Green functions are identical when the generalized force and the generalized dislocation approach to the elliptic boundary from points outside or inside the inhomogeneity. The interaction electric enthalpy between the inhomogeneity and the dislocation is given, which can be used to find the interaction force on the dislocation owing to the existence of the inhomogeneity. Numerical illustrations for the interaction forces are also given and some discussions on the effects of the material mismatches on the interaction forces are made.

• 出版日期2001-11
• 单位上海交通大学