Abstract
We study granular materials using both event driven (ED) and molecular dynamics (MD) methods. In the MD simulations we implement linear as well as nonlinear forces and also hysteretic interactions. For multiple collisions the two methods show differences: MD calculations lead to weak, whereas ED methods result in rather strong dissipation, as determined through an effective restitution coefficient.
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Luding, S., Clément, E., Blumen, A. et al. Interaction Laws and the Detachment Effect in Granular Media. MRS Online Proceedings Library 367, 495–500 (1994). https://doi.org/10.1557/PROC-367-495
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DOI: https://doi.org/10.1557/PROC-367-495