Elastic energy, fluctuations and temperature for granular materials

L. Kondic, R. P. Behringer

Research output: Contribution to journalArticlepeer-review

23 Scopus citations


We probe, using a model system, elastic and kinetic energies for sheared granular materials. For large enough P/Ey (pressure/Young's modulus) and P/v2 (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, Tg, with both kinetic and elastic terms and that changes smoothly from one regime to the other. This Tg is roughly consistent with a temperature adapted from equilibrium statistical mechanics.

Original languageEnglish (US)
Pages (from-to)205-211
Number of pages7
JournalEurophysics Letters
Issue number2
StatePublished - Jul 15 2004

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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