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Journal Articles Physical Review E : Statistical, Nonlinear, and Soft Matter Physics Year : 2003

Microdisplacements induced by a local perturbation inside a granular packing

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Abstract

The microdisplacements generated by a small localized overload at the free surface are visualized experimentally inside a packing of steel beads. For a triangular packing, beads rearrangements remain confined in two inverted triangles on both sides of the applied overload. This pattern disappears for stronger disorder. A simple model allows us to account for these observations and to relate them to the stress function response measured via photoelastic visualizations. This provides a different tool to probe the mechanical Green's function in weakly confined packings of rigid grains the description of which is the most challenged.

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cea-01373750 , version 1 (29-09-2016)

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Daniel Bonamy, Samuel Bernard-Bernardet, François Daviaud, Louis Laurent. Microdisplacements induced by a local perturbation inside a granular packing. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, 2003, 68 (4), pp.042301. ⟨10.1103/PhysRevE.68.042301⟩. ⟨cea-01373750⟩
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