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Stresses in silos: Comparison between theoretical models and new experiments

L. Vanel·Ph. Claudin·J. -Ph. Bouchaud·M. E. Cates·E. Clément·J. P. Wittmer
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Abstract

We present precise and reproducible mean pressure measurements at the bottom of a cylindrical granular column. If a constant overload is added, the pressure is linear in overload and nonmonotonic in the column height. The results are {\em quantitatively} consistent with a local, linear relation between stress components, as was recently proposed by some of us. They contradict the simplest classical (Janssen) approximation, and may pose a rather severe test of competing models.

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L. Vanel, Ph. Claudin, J. -Ph. Bouchaud, M. E. Cates, E. Clément, J. P. Wittmer. 1999-11-25. Stresses in silos: Comparison between theoretical models and new experiments. https://doi.org/10.1103/physrevlett.84.1439

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