Generalized Kelvin Viscoelastic Material

Application ID: 29761

The behavior of viscoelastic materials can be represented by conceptual models composed of elastic and viscous elements connected in series or in parallel.

The rheology of the generalized Kelvin model (also called generalized Kelvin-Voigt model) consists of an elastic spring to represent the instantaneous stiffness plus n Kelvin-Voigt branches connected in series.

This example shows how to implement a generalized Kelvin viscoelastic material of two branches by solving the strains in the viscoelastic branches with the Domain ODEs and DAEs interface. The comparison to the analytical response for uniaxial deformation is also included.

This model example illustrates applications of this type that would nominally be built using the following products: