Pournin, LionelLiebling, Thomas M.Mocellin, Alain2006-02-132006-02-132006-02-13200210.1103/PhysRevE.65.011302https://infoscience.epfl.ch/handle/20.500.14299/223016WOS:000173407400024We first describe the three-dimensional extension of the molecular-dynamics models for granular media simulations. We then discuss the known energy dissipation problem occurring when simulating dense granular media with the usual molecular-dynamics forces models. We finally propose a force model able to control the energy dissipation in the multiparticle contact situations typical to dense granular media, together with appropriate numerical results.45.70.-n83.10.RsMolecular-dynamics force models for better control of energy dissipation in numerical simulations of dense granular mediatext::journal::journal article::research article