Properties of layer-by-layer vector stochastic models of force fluctuations in granular materials

Details Properties of layer-by-layer vector stochastic models of force fluctuations in granular materials Properties of layer-by-layer vector stochastic models of force fluctuations in granular materials

1998-11-13

arxiv.org/abs/cond-mat/9811202v1

PRE 59, 5870 (1999).

Physics

Condensed Matter

Soft Condensed Matter

18 pages, 12 figures (with subfigures), 1 table. Uses revtex, epsfig,subfigure, and cite. Submitted to PRE. Plots have been bi

Scientific paper

10.1103/PhysRevE.59.5870

We attempt to describe the stress distributions of granular packings using lattice-based layer-by-layer stochastic models that satisfy the constraints of force and torque balance and non-tensile forces at each site. The inherent asymmetry in the layer-by-layer approach appears to lead to an asymmetric force distribution, in disagreement with both experiments and general symmetry considerations. The vertical force component probability distribution is robust and in agreement with predictions of the scalar q model while the distribution of horizontal force components is qualitatively different and depends on the details of implementation.

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