Analysis of Viscoelastic Behavior of Soil by Means of Finite Element Method (2)

Application of FEM in 2-dimensional Stress State

Abstract

Constitutive equation, stress relaxation equation and creep equation were developed under two-dimensional stress state for 3 element Voigt model of soil and prepared in order to validate them by Finite Element Method program.
Outline of FEM program, in which the stiffness matrix was solved by means of unit partition method, was described and its usefullness was clarified.
From the comparison of stress relaxation curves between theoretical and computed (by FEM) results it was found that the computed curve was satisfactorily coincident with the theoretical one.