1. Force network ensemble: a new approach to static granular matter
- Author
-
snoeijer, J.H., Vlugt, T.J.H., van Hecke, M., van Saarloos, W., Chemie van de vaste stof: Luminescentie en elektrochemie, Grensvlakken, Universiteit Utrecht, Dep Scheikunde, Chemie van de vaste stof: Luminescentie en elektrochemie, Grensvlakken, Universiteit Utrecht, and Dep Scheikunde
- Subjects
Physics ,Statistical Mechanics (cond-mat.stat-mech) ,General Physics and Astronomy ,FOS: Physical sciences ,Disordered Systems and Neural Networks (cond-mat.dis-nn) ,Condensed Matter - Disordered Systems and Neural Networks ,Condensed Matter - Soft Condensed Matter ,Contact force ,Condensed Matter::Soft Condensed Matter ,Formalism (philosophy of mathematics) ,Classical mechanics ,Granular matter ,Phase space ,A priori and a posteriori ,Soft Condensed Matter (cond-mat.soft) ,Statistical physics ,Condensed Matter - Statistical Mechanics - Abstract
An ensemble approach for force distributions in static granular packings is developed. This framework is based on the separation of packing and force scales, together with an a-priori flat measure in the force phase space under the constraints that the contact forces are repulsive and balance on every particle. We show how the formalism yields realistic results, both for disordered and regular ``snooker ball'' configurations, and obtain a shear-induced unjamming transition of the type proposed recently for athermal media., Comment: 4 pages, 4 figures, changed content
- Published
- 2004