NSTAR

Modeling Nonlinear Problems

The designers of NSTAR recently increased the allowable number of material sets from 20 to 90. New material models include:

• Isotropic

• Orthotropic

• von Mises and Drucker-Prager yield

• Elasto-plastic and perfectly plastic

• Isotropic/kinematic hardening

• Incompressible materials

• Nonlinear elastic

• Higher order Mooney-Rivlin hyperelastic

• Ogden hyperelastic

• Temperature dependent properties

• Thermoplasticity

• Creep

• Viscoelasticity (Maxwell model)

• User-defined material models

• Large-strain plasticity

• Concrete model

• Temperature-dependent creep

• Blatz-Ko material model

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