Question #695989 on Yade changed:
https://answers.launchpad.net/yade/+question/695989
Status: Open => Answered
Jan Stránský proposed the following answer:
Hello,
> young = 1e20 for Mat 3
> Mat3=O.materials.append(FrictMat(young = 1e14, poisson = 0.1))
please be consistent.
> sp1=pack.SpherePack()
> sp2=pack.SpherePack()
use ONE SpherePack, calling makeCloud 2x.
The current way, the two sphere packs are independent, knowing nothing about
each other, so the resulting bodies may be (most likely are) overlapping, which
may cause some small particles "firing" from large particles, giving them high
velocity, higher than needed to detect sphere-facet interaction.
Using one sphere pack, particles are guaranteed to be non-overlapping.
Also, using >0 thick boundary, e.g. box instead of facet, should help.
cheers
Jan
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