ABSTRACT
The fully coupled interaction between a soil skeleton and the pore fluid can be described by the finite element program SWANDYNE II which is based upon the Biot formulation. However, for the program to be trusted as a reliable seismic design tool, a comprehensive range of correlations with dynamic centrifuge tests and field observations needs to be made. In particular, the constitutive model must reproduce soil response under dynamic loading, have a limited number of material parameters which can quickly and confidently be correlated with experimental data and be computationally inexpensive. With these aims in mind, a new constitutive model has been developed. This paper describes the performance of the fully coupled finite element program SWANDYNE II with the new constitutive model in dynamic boundary value problems. Comparisons are made with experimental tests from the Cambridge centrifuge facility.
