yade-users team mailing list archive

[Václav Šmilauer <question218111@xxxxxxxxxxxxxxxxxxxxx>]

Question #218111 on Yade changed:
https://answers.launchpad.net/yade/+question/218111

Václav Šmilauer posted a new comment:
P-wave timestep is actually not correct for clumps. A wave propagates
elastically in sphere, but the connection of particles within one clump
propagate the wave immediately (infinite stiffness).

E.g. clump like (r1=0.1m)--[center-center distance 0.2m]--(r2=0.1m) has
0.4m distance between contact endpoints, but only 0.2m are elastic
material. The critical timestep should be multiplied with
(elastic_length/geometric_length), in this case 0.5.

-- 
You received this question notification because you are a member of
yade-users, which is an answer contact for Yade.