>> Yes, en and es are normal and tangential coefficients of restitution >> (ratio of velocities after and before the 'impact': vf/vi). >> I wanted to say that the parameters in >> SimpleViscoelasticBodyParameters could be the stiffnesses and >> restitution coefficients. Then, the effective mass together with the >> viscous constants could be determined in >> SimpleViscoelasticRelationships (maybe with the equations you >> showed me). > I do not quite understand the idea. At this point, > SimpleViscoelasticBodyParameters contains the viscoelastic > parameters of > a single body, i.e. its stiffnesses and viscosity. > SimpleViscoelasticRelationships defines the effective parameters of > interaction between two different viscoelastic bodies (by analogy with > the effective Young's modulus).
Precisely, the effective mass (for a given contact) is not computed in SimpleViscoelasticRelationships. So cn can be larger than the critical value for this contact. You agree? _______________________________________________ Mailing list: https://launchpad.net/~yade-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-dev More help : https://help.launchpad.net/ListHelp _______________________________________________ yade-dev mailing list [email protected] https://lists.berlios.de/mailman/listinfo/yade-dev
