A magnetoelectric screw dislocation interacting with a circular layered inclusion

作者：Shen Ming Ho^*

来源：European Journal of Mechanics - A: Solids , 2008, 27(3): 429-442.

DOI：10.1016/j.euromechsol.2007.08.004

• circular layered composite
• screw dislocation
• magnetoelectromechanical loadings

Within the framework of the linear theory of magnetoelectroelasticity, the problem of a circular layered inclusion interacting with a generalized screw dislocation under remote anti-plane shear stress and in-plane magnetoelectric loads is investigated in this paper. The generalized dislocation can be located either in the matrix or in the circular layered inclusion. The layers are coaxial cylinders of annular cross-sections with arbitrary radii and different material properties. Using complex variable theory and the alternating technique, the solution of the present problem is expressed in terms of the solution of the corresponding homogeneous medium problem subjected to the same loading. Some numerical results are provided to investigate the influence of material combinations on the shear stress, electric field, magnetic and image force. These solutions can be used as Green's functions for the analysis of the corresponding magnetoelectric crack problem.

• 出版日期2008-6