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5 papers · 2 filters
Effect of confinement on dense packings of rigid frictionless spheres and polyhedra
Jean-François Camenen, Yannick Descantes, Patrick Richard
We study numerically the influence of confinement on the solid fraction and on the structure of three-dimensional random close packed (RCP) granular materials subject to gravity. T…
Experimental Investigation of Plastic Deformations Before Granular Avalanche
Axelle Amon, Roman Bertoni, Jérôme Crassous
We present an experimental study of the deformation inside a granular material that is progressively tilted. We investigate the deformation before the avalanche with a spatially re…
Switching Reversibly between Ultrastable and Unstable Foams
Anne-Laure Fameau, Arnaud Saint-Jalmes, Fabrice Cousin +7
Ultrastable foams with an optimal foamability have been obtained using hydroxyl fatty acids tubes. The stabilization results from the adsorption of monomers at the air-water interf…
Silo collapse under granular discharge
G. Gutiérrez, C. Colonnello, P. Boltenhagen +4
We investigate, at a laboratory scale, the collapse of cylindrical shells of radius and thickness induced by a granular discharge. We measure the critical filling height fo…
On the relevance of numerical simulations to booming sand
Patrick Richard, Sean Mcnamara, Merline Tankeo
We have performed a simulation study of 3D cohesionless granular flows down an inclined chute. We find that the oscillations observed in [L.E. Silbert, Phys. Rev. Lett., 94, 098002…