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[Anton Gladky <question234854@xxxxxxxxxxxxxxxxxxxxx>]

Question #234854 on Yade changed:
https://answers.launchpad.net/yade/+question/234854

    Status: Open => Answered

Anton Gladky proposed the following answer:
Hi,

for example, in ViscoelasticPM the damping coefficient is calculated
for the interaction like [1]:

phys->cn = (cn1?1/cn1:0) + (cn2?1/cn2:0); phys->cn =
phys->cn?1/phys->cn:0;

it depends on the contact law, what you are going to use.

[1]
https://github.com/yade/trunk/blob/master/pkg/dem/ViscoelasticPM.cpp#L57

Cheers,

Anton


2013/8/29 Bowman <question234854@xxxxxxxxxxxxxxxxxxxxx>:
> New question #234854 on Yade:
> https://answers.launchpad.net/yade/+question/234854
>
> Hi,
> I'd like to model a bed of one material that periodically is impacted by a much softer material. Is it possible to define a damping for the hard bed material interactions and another damping for the softer material as it interacts with the hard bed? In other words the restitution for the hard/hard should be greater than the restitution for the soft/hard interactions. Thanks!
>
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