Behavior of grains in contact with the wall of a silo during the initial instants of a discharge-driven collapse

Autor:	Colonnello, C., Reyes, L. I., Clément, E., Gutiérrez, G.
Rok vydání:	2014
Předmět:	Condensed Matter - Soft Condensed Matter
Druh dokumentu:	Working Paper
DOI:	10.1016/j.physa.2013.12.010
Popis:	We study experimentally gravity-driven granular discharges of laboratory scale silos, during the initial instants of the discharge. We investigate deformable wall silos around their critical collapse height, as well as rigid wall silos. We propose a criterion to determine a maximum time for the onset of the collapse and find that the onset of collapse always occurs before the grains adjacent to the wall are sliding down. We conclude that the evolution of the static friction toward a state of maximum mobilization plays a crucial role in the collapse of the silo. Comment: 12 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1412.5626 Zobrazit plný text záznamu View this record from Arxiv