Tire Deformation

Technical Challenge

The behavior of elastomeric materials is controlled by the inherent nonlinear viscoelasticity. The nonlinear behavior makes the material strain-rate dependent and lose energy during cyclic loading (hysteresis). These behaviors are important for many applications, for example when determining the footprint of a tire.

PolymerFEM Solution

PolymerFEM has developed a set of material models for elastomers that can handle both the small-strain dynamic and the large-strain nonlinear viscoelastic response. In this case we used the Bergstrom-Boyce (BB) model in PolyUMod® to determine the footprint of an inflated tire that is vertically loaded. 

The BB model can be used to determine the change in contact area, and the stress and strain distributions as a function of time.

Share on facebook
Share on twitter
Share on linkedin

More to explore

Updated Site

I just switched the PolymerFEM.com website to using WordPress! Lots of improvements will be introduced in the next few months.

PolyUMod with Altair Radioss™

Demonstrate how to use a PolyUMod material model with the Radioss explicit FE solver. Information about how to select and calibrate a PolyUMod material model is presented in our “MCalibration for Altair” tutorial.

Leave a Comment