1999
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Statistical Physics

The physics of sandcastles: maximum angle of stability in wet and dry granular media

Abstract
We demonstrate that stability criteria can be used to calculate the maximum angle of stability, m, of a granular medium composed of spherical particles in three dimensions and circular discs in two dimensions. We apply the results to wet granular material by calculating the dependence of m on the liquid content of the material. The results are in good agreement with our experimental data.

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