Journal of Theoretical
and Applied Mechanics

36, 3, pp. 745-757, Warsaw 1998

Computational aspects of saturated porous media undergoing large deformations

Gwidon Szefer
Large displacements and finite strains of saturated porous media will be considered. A consistent lagrangian description for both solid and fluid phases is presented. The problem of interaction between phases, crucial for computation, is discussed in detail. Variational formulations for the initial boundary value problem and iterative procedures allowing for overcoming nonlinearities are given. These enables one to solve a complex problem of deformation of two-component bodies with deformation-dependent porosity, permeability and separation of particles.
Keywords: large deformations; porous media; phase interactions; partial stresses; interface