Energetic Instability Unjams Sand and Suspension

Details Energetic Instability Unjams Sand and Suspension Energetic Instability Unjams Sand and Suspension

2004-05-19

arxiv.org/abs/cond-mat/0405426v2

Physics

Condensed Matter

Soft Condensed Matter

9 pages 2 fig

Scientific paper

10.1103/PhysRevLett.93.148001

Jamming is a phenomenon occurring in systems as diverse as traffic, colloidal suspensions and granular materials. A theory on the reversible elastic deformation of jammed states is presented. First, an explicit granular stress-strain relation is derived that captures many relevant features of sand, including especially the Coulomb yield surface and a third-order jamming transition. Then this approach is generalized, and employed to consider jammed magneto- and electro-rheological fluids, again producing results that compare well to experiments and simulations.

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