Publications [#248389] of Joshua Socolar

Papers Published
  1. Socolar, JES; Schaeffer, DG; Claudin, P, Directed force chain networks and stress response in static granular materials, European Physical Journal E, vol. 7 no. 4 (2002), pp. 353-370 [0201242] .

    Abstract:
    A theory of stress fields in two-dimensional granular materials based on directed force chain networks is presented. A general Boltzmann equation for the densities of force chains in different directions is proposed and a complete solution is obtained for a special case in which chains lie along a discrete set of directions. The analysis and results demonstrate the necessity of including nonlinear terms in the Boltzmann equation. A line of nontrivial fixed-point solutions is shown to govern the properties of large systems. In the vicinity of a generic fixed point, the response to a localized load shows a crossover from a single, centered peak at intermediate depths to two propagating peaks at large depths that broaden diffusively.