2000/11/17 by Hisao Hayakawa, Hayakawa, Hisao, Hiroto Kuninaka +1
Engineering · Materials Science · Physics and Astronomy · #Fluid Dynamics Simulations and Interactions #Granular flow and fluidized beds #High-Velocity Impact and Material Behavior #cond-mat.stat-mech
paper · pdf · doi:10.48550/arxiv.cond-mat/0011294
13 pages,7 figures
arxiv created 2000/11/20 · arxiv updated 2009/11/30
The impact of a two-dimensional elastic disk with a wall is numerically studied. It is clarified that the coefficient of restitution (COR) decreases with the impact velocity. The result is not consistent with the recent quasi-static theory of inelastic collisions even for very slow impact. The abrupt drop of COR has been found due to the plastic deformation of the disk, which is assisted by the initial internal motion. (to be published in Proceedings of 9 th Nisshin Engineering Particle Technology International Symposium on 'Solids Flow Mechanics and Their Applications' held at Kyoto, 7th-9th January, 2001