Optimal discretization of PML for elasticity problems. (English) Zbl 1170.74052
Summary: This paper presents a generalization of the optimal finite-difference perfectly matched layer (PML) approach to isotropic elasticity. It allows the use of methods of rational approximation theory for a clever choice of discretization parameters in order to essentially reduce reflection coefficients for a wide range of incident angles while using a small number of grid points.
MSC:
74S20 | Finite difference methods applied to problems in solid mechanics |
74B05 | Classical linear elasticity |