Bergstrom-Boyce (BB) Model Parameters

Introduction to the Bergstom-Boyce Model

The Bergstrom-Boyce (BB) model is, in my opinion, the best simple non-linear viscoelastic material model for rubber-like materials. But I’m guess that I’m biased, since I developed the model 😎. The popularity of the Bergstrom-Boyce model is evident by how many commercial FE codes have implemented it as a built-in feature. Here’s a partial list: Abaqus, Ansys, ADINA, Altair Radiossâ„¢, MSC.Marc, and LS-DYNA. I described the theory of the BB-model in another article, here I will visually demonstrate how the different material parameters of the BB-model influence the predicted stress-strain response.

The figures shown here were generated using MCalibration®, which is excellent for these types of studies.

Graphical Representation of the Material Parameters

In this section I will discuss the PolyUMod® implementation of the Bergstrom-Boyce (BB) model. Other implementations will be very similar.

That is it! Pretty easy, right? See the following article if you would like to see how to perform a fast and easy calibration of any rubber material.

Facebook
Twitter
LinkedIn

More to explore

TNV Model Image

PolyUMod TNV Model

Summary of the TNV model from the PolyUMod library. The TNV model can accurately predict the mechanical response of almost all polymers.

Leave a Comment