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[Jan Stránský <question688993@xxxxxxxxxxxxxxxxxxxxx>]

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

    Status: Open => Needs information

Jan Stránský requested more information:
Thanks for the working script. I have tried it. With O.dt=10e-5, I see clearly what was described.
Again, it is a typical symptom of too large time step (making the simulation unstable) and I don't believe it is not overcome with decreasing the time step to a **sufficient** value

> Unfortunately decreasing ... time step did help at all. :(

what values have you tried?

> Actually I think contact model in polyhedrals has problem!As the two
polyhedrals collide very slowly, their velocity and kinetic energy
increase abnormally!!

Can you please provide a script (two bodies as is described) reproducing this behavior?
(even the number of bodies is decreased, still the simulation is far from minimal to show and study such phenomenons in detail)

cheers
Jan

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