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[Mahdeyeh <question688993@xxxxxxxxxxxxxxxxxxxxx>]

Question #688993 on Yade changed:
https://answers.launchpad.net/yade/+question/688993

Mahdeyeh gave more information on the question:
Actually I think contact model in polyhedrals has problem!As the two
polyhedrals collide very slowly, their velocity and kinetic energy
increase abnormally!!


>> this is a typical symptom of too large time step (especially if decreasing stiffness helps)
Unfortunately decreasing stiffness or time step did help at all. :(  

Your help in this would be appreciated

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