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[Yufan Zhao <question403713@xxxxxxxxxxxxxxxxxxxxx>]

Question #403713 on Yade changed:
https://answers.launchpad.net/yade/+question/403713

Yufan Zhao gave more information on the question:
Part of script about material defining and engine is shown as below:

#############
idRake=O.materials.append(FrictMat(young=193e9,poisson=0.25,density=7990,frictionAngle=0.8,label="stainless"))

idPowder+O.materials.append(FrictMat(young=220e9,poisson=0.3,density=8287,frictionAngle=0.506,label="powder"))

O.engines=[
        ForceResetter(),
        InsertionSortCollider([Bo1_Sphere_Aabb(),Bo1_Facet_Aabb()]),
        InteractionLoop(
                           [Ig2_Sphere_Sphere_ScGeom(),Ig2_Facet_Sphere_ScGeom()],
                           [Ip2_FrictMat_FrictMat_MindlinPhys()],
                           [Law2_ScGeom_MindlinPhys_Mindlin()],

        NewtonIntegrator(gravity=(0,0,-9.81),damping=0.0,label='newton'),
        TranslationEngine(.................),]

##############

I would like to make the simulation more realistic and if viscous
damping is considered, what additional parameters of materials and
system should I input?

Thanks very much for your help!

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