Tutorial on how to make the PolyUMod TN and TNV models better capture the stiffness non-linearity before yielding.
How to run COMSOL Multiphysics using an input file and a command prompt. It is easy using the Java API.
Guide to using MCalibration and PolyUMod with COMSOL Multiphysics. A complete start-to-finish tutorial is presented.
Soft polymer foams, and some other materials, often exhibit different stiffnesses in uniaxial tension and compression. Most material models cannot predict this type of behavior, but there are some excellent choices for this.