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[Question #271430]: Rolling, static and kinetic friction in Yade

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Alexander <question271430@xxxxxxxxxxxxxxxxxxxxx>
Date: Tue, 15 Sep 2015 18:12:48 -0000
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New question #271430 on Yade:
https://answers.launchpad.net/yade/+question/271430

Hello everybody. 

I'm a little bit confused with types of frictional contact in Yade. Lets consider CohFrictPhys class and 3 types of friction rolling, static and kinetic. 

In the documentation there are only static and kinetic friction well described (I mean shear force computation for them), so where is rolling friction coefficient and how shear force depends on it?

Also lets consider simple example: One sphere lies motionless on the plane which is parallel to the ground (no cohesion links). Then we start to pull it with the force parallel to the plane. So how Yade chooses what this sphere should do (roll or slide) on the plane when maximum shear force is reached? (i mean the end of static friction).

with regards Alexander   

 

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