Question #694837 on Yade changed: https://answers.launchpad.net/yade/+question/694837
Robert Caulk proposed the following answer: >I think I did not understand the part for avoiding spheres intersection. The contact force estimation in Yade is based on the "intersection" of spheres. If they do not intersect, there are no forces. Jerome says if having no "intersection" is imperative to your problem then Yade (and DEM) is generally not the right tool. "Intersection" is probably the incorrect way to think about the model. Frict_mat is just an elastic deformation model. So if two spheres are "intersecting" they are actually just "deforming" one another and generating forces as a function of the deformation magnitude. Elastic means that the deformation is fully recoverable in the event that the spheres move away from one another. You can reduce the deformation magnitude by increasing particle stiffness or "youngs modulus." But there will still be a small deformation if you are applying gravity and if the particles are relying on one another to maintain a structure. Try Jerome's suggestion of reducing the friction angle during gravity settling. -- You received this question notification because your team yade-users is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
