Discrete element simulations of stress distributions in silos: crossover from two to three dimensions

Details Discrete element simulations of stress distributions in silos: crossover from two to three dimensions Discrete element simulations of stress distributions in silos: crossover from two to three dimensions

2003-02-06

arxiv.org/abs/cond-mat/0302115v2

Physics

Condensed Matter

Soft Condensed Matter

9 pages, 8 figures v2: some reorganization, sections moved around, discussion made clearer

Scientific paper

The transition from two-dimensional (2D) to three-dimensional (3D) granular packings is studied using large-scale discrete element computer simulations. We focus on vertical stress profiles and examine how they change with dimensionality from 2D to 3D. We compare results for packings in 2D, quasi-2D packings between flat plates, and 3D packings. Analysis of these packings suggests that the Janssen theory does not fully describe these packings, especially at the top of the piles, where a hydrostatic-like region of vertical stress is visible in all cases. We find that the interior of the packing is far from incipient failure, while in general, the forces at the walls are close to incipient failure.

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