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[Chareyre <question136034@xxxxxxxxxxxxxxxxxxxxx>]

Question #136034 on Yade changed:
https://answers.launchpad.net/yade/+question/136034

Chareyre proposed the following answer:
 > not sure if energy balance would make any difference (kinetic/elastic
> potential) -- it could, since physical systems conserve energy rather
> than forces, therefore even if they are both adimensional and one will
> be monotnically increasing function of the other, it can be a better
> measure. Never tried, though.

This is another reasonable option. The problem is you can have free particles in holes of
the packing, spining forever since they have no contact. They will give a finite kinetic
energy, but null unbalanced force. The latest is more relevant since such particles do not
correspond to non-static behaviour of the packing.

Bruno

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