A 3D interface-enriched generalized FEM for EM analysis of composite materials

An interface-enriched generalized finite-element method (IGFEM) is introduced for efficient 3D electromagnetic analysis of composite materials. The proposed method assigns generalized degrees of freedom at material interfaces to achieve the same level of solution accuracy as the standard finite-element method (FEM) so that the need for meshes that conform to the geometries is eliminated. Two numerical results are presented to demonstrate its accuracy and capability in simulating materials with complex internal structures.