METHODS FOR FINITE ELEMENT ANALYSIS OF SEMI-INFINIT FOUNDATION SOIL IN TIME DOMAIN

Abstract

Methods are presented for application of the perfectly matched layer absorbing condition and the damping-solvent extraction method to dynamic response analyses of semi-infinite soil in time domain. Simple and Efficient displacement based finite element procedures have been developed for both methods. It is demonstrated by numerical examples that the performances of the developed procedures are better than the so-called viscous boundaries for both uniform and layered semi-infinite soil.