Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
278311 | International Journal of Solids and Structures | 2012 | 16 Pages |
The linear theory of micromorphic electroelasticity, which incorporate the coupled electromechanical behavior into the framework of micromorphic continuum theory, is used to solve the anti-plane problems of piezoelectric media with a micro-void or micro-inclusion in this paper. The electromechanical field solutions for a transversely isotropic piezoelectric medium are derived in the context of micromorphic electroelasticity and a generalized characteristic length is introduced to describe the size effect. Anti-plane problems of an infinite piezoelectric medium containing a micro-void or micro-inclusion are analyzed. Numerical results reveal that the mechanical and electric fields predicted by the present model highly depend on the relative size of the micro-void or micro-inclusion with respect to the generalized characteristic length, which is obviously different from the classical prediction.