You can implement viscous damping by yourself by writing a separate engine, and if you use viscous damping, there is no need to calculate the restitution coefficient (but surely there is a relationship between them).
Feng >===== Original Message From sega <[EMAIL PROTECTED]> ===== >> >> In short, MacroMicroElasticRelationship convert the Macro material >> parameters: Young's Modulus and Poisson's ratio, into the contact stiffness >> Kn and Ks >> >> Feng >> > >Thanks. But I know it. Me details interest. >The ElasticContactLaw is the linear contact model (is it the Cundall&Strack's >model?) therefore, in my opinion, the contact stiffness (kn, ks) and the >viscous damping coefficients (cn,cs) should be calculated proceeding from >the coefficient of restitution and duration of impact. While as parameters >for more sophisticated nonlinear model on the basis of theory Hertz Poisson's >ratio and Young's modulus should serve. How these parameters are used in the >linear model? Where I can read about it? >_______________________________________________ >Yade-users mailing list >[email protected] >https://lists.berlios.de/mailman/listinfo/yade-users _______________________________________________ Yade-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/yade-users
