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

Author

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

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.

Suggested Citation

  • Colonnello, C. & Reyes, L.I. & Clément, E. & Gutiérrez, G., 2014. "Behavior of grains in contact with the wall of a silo during the initial instants of a discharge-driven collapse," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 398(C), pages 35-42.
    • Handle: RePEc:eee:phsmap:v:398:y:2014:i:c:p:35-42
    DOI: 10.1016/j.physa.2013.12.010
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    References listed on IDEAS

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    1. Chand, Ram & Shi, Qingfan & Qadir, Abdul & Ma, Shaopeng & Sun, Gang, 2012. "Fluctuations in apparent mass at the bottom of granular columns due to different arrangements," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 391(10), pages 2936-2939.
    2. L. Vanel & E. Clément, 1999. "Pressure screening and fluctuations at the bottom of a granular column," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 11(3), pages 525-533, October.
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