Question #706768 on Yade changed: https://answers.launchpad.net/yade/+question/706768
Status: Open => Answered Karol Brzezinski proposed the following answer: Hi Senel, In the Cundall-Strack model, the contact stiffness is linear (does not depend on the contact force or particles' overlap). On the other hand, the Hertz-Mindlin law is exponential [1], and stiffness increases with load. In other words - those are different models, so they give different results. BTW: Your void ratio definition is very strange. If you achieved Vr = 1 in the experiment (by your definition Vr=volume of particles/volume of container), you actually had zero porosity. It doesn't look like this in the simulation, because the particles highly overlap, hence some of the particle volume is counted twice. Best wishes, Karol [1] https://en.wikipedia.org/wiki/Contact_mechanics -- 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