Wall effects on granular heap stability - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue EPL - Europhysics Letters Année : 2003

Wall effects on granular heap stability

Résumé

We investigate the effects of lateral walls on the angle of movement and on the angle of repose of a granular pile. Our experimental results for beads immersed in water are similar to previous results obtained in air and to recent numerical simulations. All of these results, showing an increase of pile angles with a decreasing gap width, are explained by a model based on the redirection of stresses through the granular media. Two regimes are observed depending on the bead diameter. For large beads, the range of wall effects corresponds to a constant number of beads whereas it corresponds to a constant characteristic length for small beads as they aggregate via van der Waals forces.

Dates et versions

hal-00133223 , version 1 (24-02-2007)

Identifiants

Citer

S. Courrech Du Pont, P. Gondret, Bernard Perrin, M. Rabaud. Wall effects on granular heap stability. EPL - Europhysics Letters, 2003, 61, pp.492-498. ⟨hal-00133223⟩
38 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More