Tutorial on how to make the PolyUMod TN and TNV models better capture the stiffness non-linearity before yielding.
Demonstration of how to accurately predict the deformation response of a soda bottle under internal pressure.
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.
The Extended Tube model is one of the most accurate hyperelastic material models available, but it can be difficult to use if you don’t understand how the material parameters influence the predicted stress-strain response. This article will demonstrate that by example.