Solid Mechanics

Advanced contact enforcement (ALM with Uzawa)

More accurate and robust contact enforcement through Augmented Lagrangian Multiplier (ALM) method combined with Uzawa algorithm
- High accuracy independent of penalty parameter
- Robust even in case of sudden contact changes
- Optional automatic update of penalty parameter for faster convergence rate

Improved contact discretization (Mortar discretization)

New Mortar discretization scheme improves convergence rate and robustness for difficult contacts with high accuracy demands
- Improves convergence rate for contacts with very high penalty parameters
- Can be used with Penalty or Augmented Lagrangian Multiplier (ALM) Uzawa method

Faster convergence for plasticity with linear strains

Faster convergence rate for models using the J2 plasticity with isotropic hardening
- Convergence now quadratic (previously linear)
- On average 50% and up to 80% less iterations

Surface Load Linearization now including Dynamic Stabilization

Quadratic convergence for solids in Fluid-Structure-Interaction setups when using Surface Load Linearization and Dynamic Stabilization

Coriolis force due to displacement in rotating structures

Improved accuracy when simulating large rotating structures with Coriolis forces caused by local displacements

One-way Fluid-to-Structure coupling for a rigid solid motion and morphing for the fluid

More flexibility when setting up one-way coupled fluid-structure interactions where solid deformations can be neglected

Prevent input of unphysical material parameters for Neo-Hookean model

Improved ease-of-use when working with hyperelastic Neo-Hookean model through automatic sanity-check on material parameter input

Block nonlinear geometry + nearly incompressible + linear elasticity

Combination of incompatible physics models is blocked to avoid wrong modelling assumptions

Thermal Shells – FE Solid Energy model with shell-only parts