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Re: [Question #225776]: Definition of Yade's frictionAngle for a single material

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Bruno Chareyre <question225776@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 04 Apr 2013 10:01:19 -0000
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Question #225776 on Yade changed:
https://answers.launchpad.net/yade/+question/225776

Bruno Chareyre proposed the following answer:
I don't see why computing at each step is static, nor why the contact laws would define only static friction.
The shear force at a sliding contact defines dynamic friction, right? In the current contact laws the maximum fs before sliding (static) and the fs during sliding (dynamic) are computed with the same angle. It simply means the assumption static friction = dynamic friction.
So FrictPhys::friction, is not "static OR dynamic", it is "static AND dynamic".

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