Neo-Hooken VUMAT question

[yaning]

Hello all,

I am using Neo Hookean Vumat provided by the web and aborted during calculation.
The material parameters are:
mu=1.0, kappa=50.0

Parameters for Explicit:

Time=100, maxdt=1e-5
constant velocity=0.01

The code aborted at time step 64.

In fact, there are results obtained by Dr. Bergerstorm in former posts, why mine is aborted due to excessive distortion?

Many thanks.

[ashu28]

What is the job size ? Look at the initial and final lengths for the distorted elements. The wave speed should not go too high.