Angle of repose and angle of marginal stability: molecular dynamics of granular particles
نویسندگان
چکیده
منابع مشابه
Angle of Repose and Angle of Marginal Stability: Molecular Dynamics of Granular Particles
We present an implementation of realistic static friction in molecular dynamics (MD) simulations of granular particles. In our model, to break contacts between two particles, one has to apply a finite amount of force, determined by the Coulomb criterion. Using a two dimensional model, we show that piles generated by avalanches have a finite angle of repose θR (finite slopes). Furthermore, these...
متن کاملAngle of repose and angle of marginal stability: molecular dynamics of granular particles
AbstracL We present an implemenlalion of realistic static friction in molecular dynamics (MD) simulations of granular particles. In our model, to break contact between two particles, one has to apply a Bnile amount of force, determined by the Coulomb criterion. Using a Wo.dimmsional model, we show that piles generated by avalanches have a @e angle of repose 8, (finite slopes). Furthermore, thes...
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We report the results of three dimensional molecular dynamic simulations on the angle of repose of a sandpile formed by pouring mono-sized cohesionless spherical grains into a granular Hele-Shaw cell. In particular, we are interested to investigate the effects of those variables which may impact significantly on pattern formation of granular mixtures in Hele-Shaw cells. The results indicate tha...
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When a sandpile relaxes under vibration, it is known that its measured angle of repose is bistable in a range of values bounded by a material-dependent maximal angle of stability; thus, at the same angle of repose, a sandpile can be stationary or avalanching, depending on its history. In the nearly jammed slow dynamical regime, sandpile collapse to a zero angle of repose can also occur, as a ra...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and General
سال: 1993
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/26/2/021