2003/07/23 by Lou Kondic, L Kondic, R. P. Behringer +1
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Granular flow and fluidized beds #Material Dynamics and Properties #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1209/epl/i2004-10061-5
published as Europhysics Letters, 67(2), pp. 205-211 (2004) · 4 pages, 4 figures
arxiv created 2003/07/23 · openalex publication_date 2004/07/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We probe, using a model system, elastic and kinetic energies for sheared granular materials. For large enough P / E y (pressure/Young's modulus) and P /ρ v 2 ( P /kinetic energy density) elastic dominates kinetic energy, and energy fluctuations become primarily elastic in nature. This regime has likely been reached in recent experiments. We consider a generalization of the granular temperature, T g , with both kinetic and elastic terms and that changes smoothly from one regime to the other. This T g is roughly consistent with a temperature adapted from equilibrium statistical mechanics.