Question

A mixed finite element procedure for soil-structure interaction

Answer 1

Mixed finite element procedures with triangular and quadrilateral elements are evaluated and applied for nonlinear elastic and elastic–plastic analysis of some engineering problems. The elastic–plastic analysis involves implementation of von Mises, Drucker–Prager and Cap models. A number of special techniques such as symbolic programming, utilization of dihedral symmetry and the frontal solution are used to achieve computational economy.