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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