Silo Collapse: An Experimental Study

Gustavo Gutiérrez (), Philippe Boltenhagen, José Lanuza and Eric Clément
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Gustavo Gutiérrez: Laboratoire de Physique et Mécanique des Milieux Hétérogènes UMR 7636/ESPCI
Philippe Boltenhagen: Laboratoire de Physique et Mécanique des Milieux Hétérogènes UMR 7636/ESPCI
José Lanuza: Laboratoire de Physique et Mécanique des Milieux Hétérogènes UMR 7636/ESPCI
Eric Clément: Laboratoire de Physique et Mécanique des Milieux Hétérogènes UMR 7636/ESPCI

A chapter in Traffic and Granular Flow ’07, 2009, pp 517-523 from Springer

Abstract: Summary The purpose of this experimental work is to develop some basic insight into the pre-buckling behavior and the buckling transition toward plastic collapse of a granular silo by studying different patterns of deformation generated on thin paper cylindrical shells during granular discharge. We study the collapse threshold considering the influence of the bed heights, flow rates and grain sizes. We compare the patterns that appear during the discharge of spherical beads, with those obtained in the axially compressed cylindrical shells. When the height of the granular column is close to the collapse threshold, we observe a ladder like pattern that rises around the cylinder surface in a spiral path of diamond shaped localizations, and develops into a plastic collapsing fold that grows around the collapsing silo.

Date: 2009
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DOI: 10.1007/978-3-540-77074-9_56

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