New question #404455 on Yade: https://answers.launchpad.net/yade/+question/404455
Hello, I am simulating a periodic isotropic compression of well graded material (Cu>3) to reach the stable loosest state (target porosity). I use ViscElMat to define the material (Kn,Ks,cn,cs,frictionangle,density): -The friction angle is set to 0.7 (the porosity will increase by increasing the friction) -cn and cs are in functions of a predefined critical damping ratio, kn and the mean radius of particles. -The damping in Newton Integrator is set to 0. The energy dissipation is then introduced in the system by means of a viscous damping defined at contacts. This set of parameters allows obtaining porosity smaller than the target porosity (a more dense state) and if I increase the values of cn and cs by increasing the critical damping ratio, I obtain the same value of porosity. Now, if I set cn and cs to 0 and I use a global numerical damping instead, I can reach the target porosity (obtain a loosest state). How we can interpret this difference, and which method is better to use with viscElMat? Thank you feda -- 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 : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
