Question #271430 on Yade changed:
https://answers.launchpad.net/yade/+question/271430
Status: Open => Answered
Bruno Chareyre proposed the following answer:
Hi Alexander,
There is no kinetic friction, there is shear, rolling and twisting.
>so where is rolling friction coefficient...
https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.CohFrictMat.etaRoll
>... and how shear force depends on it?
No dependency. Rolling friction limits the bending to
etaRoll*radius*normalForce.
>So how Yade chooses what this sphere should do (roll or slide)
It deends which threshold (friction vs. etaRoll) is reached first.
Bruno
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