Nonlinear Structural Materials Module UpdatesFor users of the Nonlinear Structural Materials Module, COMSOL Multiphysics® version 5.2a brings an extended Hyperelastic Material model with the ability to model large-strain viscoelasticity, as well as new material models for kinematic and isotropic hardening and the ability to mix these models for modeling elastoplastic materials. Review all of the Nonlinear Structural Materials Module updates in further detail below.
The Hyperelastic Material models have been extended with the possibility to add viscoelasticity. The finite strain viscoelastic model has the same features as the one already available for small strains:
- Generalized Maxwell, Standard linear solid, and Kelvin-Voigt models.
- Williams-Landel-Ferry (WLF), Arrhenius, and User defined temperature shift functions.
Mixed Isotropic and Kinematic Hardening
New Isotropic and Kinematic Hardening Models in Plasticity
Four new isotropic hardening models have been introduced to the Plasticity node:
Application Library path for an example that uses the new Ludwik model for isotropic hardening model for plasticity:
Two new kinematic hardening models have been introduced to the Plasticity node: