Multiphysics Modeling for Electromagnetic Interaction with Elastic Objects

Electromagnetic interaction with elastic objects includes both electrodynamic and elastodynamic processes which are of multiphysics feature. The electrodynamic process is governed through Maxwell's equations while the elastodynamic process is described by elastic wave equations and they are coupled together by excitations. Traditionally, these equations are presented in the form of partial differential equations and only differential equation solvers can be used to solved them. In this work, we develop coupled integral equations for the multiphysics process based on equivalence theorem so that integral equation solvers can be used to solve them. A typical numerical example is presented to demonstrate the approach and good results have been obtained.