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[Bruno Chareyre <question233232@xxxxxxxxxxxxxxxxxxxxx>]

Question #233232 on Yade changed:
https://answers.launchpad.net/yade/+question/233232

Bruno Chareyre proposed the following answer:
> In reality, the concrete in the mineral particles initially not in
contact

You can create interactions by hand as explained in [1].
If the particles are defined with material type CohFrictMat, you can tweak the plastic part of the normal displacement so that the initial configuration is at equilibrium. Like this:

i=utils.createInteraction(id1,id2)
i.phys.unp=i.geom.penetrationDepth

[1]  https://www.yade-dem.org/doc/user.html#individual-interactions-on-
demand

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