> Currently in Ig2_Box_Sphere_ScGeom, sphere-box contacts are seen as > contacts between the sphere and another sphere twice bigger (the big one > representing the box). > I'd like to change that and make the fictious sphere the same size as > the real one, so that box-sphere contacts will have the same stiffness > that contacts between equal spheres (preserves somehow a symetry, I > never knew why this factor 2). > > Please let me know if this change would create problems for you, and/or > be prepared to see a small change in the rigidity of the boundaries in > the triaxial test.
IMHO in longer perspective, you would be better off implementing ScGeom for Wall+Sphere and get rid of Box altogether, at least for the purposes of boundary conditions. You could also assign some fictitious thickness to Wall as well, getting soft membrane-like behavior (Wall can interact in one direction only, there would be no problem of spheres going through to the other side). Cheers, Vaclav _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
