Numerical Modeling of Linear Viscoelasticity in a Finite Element Method Software Package to be Used in Multiphysics Modeling

In this paper، the capabilities of modeling linear viscoelasticty in a finite element method software package (COMSOL Multiphysics) have been investigated. The governing equations of linear viscoelasticity have been developed for 2D cases of plane stress and plane strain. These equations have been verified by solving a related engineering example. Since the developed equations are suitable for modeling multiphysics mechanisms، the presented model can also be used in modeling linear viscoleasticity coupled with other multiphysics phenomena.