Question #254308 on Yade changed:
https://answers.launchpad.net/yade/+question/254308
Status: Open => Answered
Anton Gladky proposed the following answer:
Hi Francois,
it seems, you are right. If we do it, we need to recalculate tc according
to (19). Not sure, how to do it better. One proposal is to have a variable,
something like tcUpdated, in ViscElPhys where we will store the updated
tc value.
Best regards
Anton
2014-09-10 16:39 GMT+02:00 Kneib François
<[email protected]>:
> New question #254308 on Yade:
> https://answers.launchpad.net/yade/+question/254308
>
> Hi Anton,
>
> you recently changed the visco-elastic law to avoid any attractive force
> according to Schwager 2007. As a consequence the effective contact duration
> and restitution coefficient are not respected relative to the one you set
> into the material. In other terms, the equations in Pournin 2001 are no
> longer rightful.
>
> What is your position about this issue ? Do you think that we should
> implement the equation that Schwager propose (eq. 19) ? (but this equation
> seems much more difficult to implement than Pournin's one).
>
> Thanks.
>
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