Laplace domain Boundary element method for 3D poroelastodynamics

摘要

To describe poroelastic properties, a dynamic model of Biot's material is used in the frame of the three-dimensional isotropic linear dynamic poroelasticity with four basic functions - displacements of the elastic skeleton and pore pressures. A direct version of the BIE method is developed. The boundary-element scheme is constructed using: regularized BIE's, a matched element-by-element approximation, adaptive numerical integration in combination with a singularity-reducing algorithm, etc. The computer simulation is done using the boundary-element methodologies of the stepped method.