Simulations of dense granular gases without gravity with impact-velocity-dependent restitution coefficient [PDF]
, 2007 We report two-dimensional simulations of strongly vibrated granular materials without gravity. The coefficient of restitution depends on the impact velocity between particles by taking into account both the viscoelastic and plastic deformations of ...
Andrews +45 more
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Impact of a pressurized membrane: Coefficient of restitution
Physical Review E, 2023 Pressurized membranes are usually used for low cost structures (e.g., inflatable beds), impact protections (e.g., airbags), or sport balls. The last two examples deal with impacts on the human body. Underinflated protective membranes are not effective whereas overinflated objects can cause injury at impact. The coefficient of restitution represents the
Darbois Texier, Baptiste, Tadrist, Loïc
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Influence of the coefficient of restitution on the classification of granite sand using an elutriator [PDF]
EPJ Web of Conferences, 2021 The objective of this work was to measure the coefficient of restitution of fine granite sand dust (passing sieve ASTM N°30) and to study its influence on the prediction of classification parameters in an elutriator device.
Borsa Eugenia +4 more
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Effects of the impact angle on the coefficient of restitution in rockfall analysis based on a medium-scale laboratory test [PDF]
Natural Hazards and Earth System Sciences, 2018 The reliability of a computer program simulating rockfall trajectory depends on the ascertainment of reasonable values for the coefficients of restitution, which typically vary with the kinematic parameters and terrain conditions.
Y. Wang +5 more
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Air Pressure and Coefficient of Restitution of a Ball [PDF]
International Scholastic Journal of Science, 2013 The relationship between the pressure of a ball and its coefficient of restitution was investigated, a rubber handball was inflated to eight varying air pressures and then dropped from a constant height. With measurements of its mass, circumference,
JuWon Kim, Chanhyeok Yim
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Coefficient of restitution for viscoelastic materials [PDF]
Journal of the Korean Physical Society, 2014 11 pages, 4 ...
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Free cooling and high-energy tails of granular gases with variable restitution coefficient [PDF]
, 2010 We prove the so-called generalized Haff's law yielding the optimal algebraic cooling rate of the temperature of a granular gas described by the homogeneous Boltzmann equation for inelastic interactions with non constant restitution coefficient.
Alonso, Ricardo J., Lods, Bertrand
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Geometry of Frictionless and Frictional Sphere Packings [PDF]
, 2001 We study static packings of frictionless and frictional spheres in three dimensions, obtained via molecular dynamics simulations, in which we vary particle hardness, friction coefficient, and coefficient of restitution.
A.S. Clarke +18 more
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Particle Collision Study Based on a Rotational Boundary Condition
Journal of Marine Science and Engineering, 2023 The main engineering machinery for the hydrodynamic lifting of seafloor mineral particles is rotor machinery with rotating impeller motion. It is important to study the rebound mechanism of collisions between particles and rotating walls to improve the ...
Yi Li +3 more
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Self-diffusion in granular gases: Green-Kubo versus Chapman-Enskog
, 2005 We study the diffusion of tracers (self-diffusion) in a homogeneously cooling gas of dissipative particles, using the Green-Kubo relation and the Chapman-Enskog approach. The dissipative particle collisions are described by the coefficient of restitution
Abramowitz M., Ben-Naim E., Resibois P.
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