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

C. Colonnello, L.I. Reyes, E. Clément and G. Gutiérrez

Physica A: Statistical Mechanics and its Applications, 2014, vol. 398, issue C, 35-42

Abstract: 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 towards a state of maximum mobilization plays a crucial role in the collapse of the silo.

Keywords: Silo collapse; Grain discharge; Friction mobilization (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:398:y:2014:i:c:p:35-42

DOI: 10.1016/j.physa.2013.12.010

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