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Re: [Question #650560]: micro parameters of Frictional material

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Klaus Thoeni <question650560@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 21 Jul 2017 01:06:31 -0000
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Question #650560 on Yade changed:
https://answers.launchpad.net/yade/+question/650560

    Status: Open => Answered

Klaus Thoeni proposed the following answer:
Hi Seti,

CohFrictMat is derived from FrictMat, i.e., it is also a FrictMat. If
you need rolling resistance you can use CohFrictMat without cohesion:

O.materials.append(CohFrictMat(alphaKr=1.7,young=30e6,poisson=0.4,density=2600,frictionAngle=radians(36.5),momentRotationLaw=True,etaRoll=.4,label='spheres'))

By not specifying cohesion the default values are used [1].

HTH
Klaus

[1] https://yade-dem.org/doc/yade.wrapper.html#yade.wrapper.CohFrictMat

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