Coefficient of restitution

Submitted by reza-ss on Fri, 12/18/2015 - 14:28

Hi All,

In some book and articles it's mentioned that coefficient of restitution isn't a constant parameter and it depends on impact velocity. I think it isn't implemented in liggghts and it may affect simulation results, so how we should consider this problem?

Thanks in Advance,
Reza

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ckloss's picture

ckloss | Tue, 12/22/2015 - 19:56

Hi Reza,

correct - the standard models consider the coefficient of restitution as constant. For most applications this is a minor issue. But it's very easy to change this. Just have a look at any normal_model_* in the source code

Best wishes
Christoph