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[Chareyre <question201766@xxxxxxxxxxxxxxxxxxxxx>]

Question #201766 on Yade changed:
https://answers.launchpad.net/yade/+question/201766

    Status: Open => Answered

Chareyre proposed the following answer:

> ---------
> I got Fn/un=0.133E7=kn, but I got Fs/us1=4.44e5 in the third step from (-.1,0,0) to (-.1,.1,0),  why?
Check the documentation of Ig2_Sphere_Sphere_ScGeom.avoidGranularRatcheting.
ks is really ks only when normal displacement is zero.

> Another problem is when path go from (-.1,.1,0) to (-1e-5,.1,0), Fs will go down because of max Fs from Fn, but
> the point Fs go down is not equal to the Fn*tan(friction angle), why?   Thank you!

I don't understand why you think it is not equal.

B

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