A mean field description of jamming in non-cohesive frictionless particulate systems

Details A mean field description of jamming in non-cohesive frictionless particulate systems A mean field description of jamming in non-cohesive frictionless particulate systems

2005-04-18

arxiv.org/abs/cond-mat/0504418v2

Physics

Condensed Matter

Materials Science

9 pages, 3 figs; additional clarification of different elastic moduli exponents, plus typo fix. To appear in PRE

Scientific paper

10.1103/PhysRevE.72.021303

A theory for kinetic arrest in isotropic systems of repulsive, radially-interacting particles is presented that predicts exponents for the scaling of various macroscopic quantities near the rigidity transition that are in agreement with simulations, including the non-trivial shear exponent. Both statics and dynamics are treated in a simplified, one-particle level description, and coupled via the assumption that kinetic arrest occurs on the boundary between mechanically stable and unstable regions of the static parameter diagram. This suggests the arrested states observed in simulations are at (or near) an elastic buckling transition. Some additional numerical evidence to confirm the scaling of microscopic quantities is also provided.

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