Slow dynamics of consolidated granular systems: Multi-scale relaxation

Parisa Shokouhi, Jacques Rivière, Robert A. Guyer, Paul A. Johnson

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Dynamic acousto-elastic testing, a pump-probe scheme, is employed to investigate the recovery of consolidated granular media systems from the non-equilibrium steady state established by a pump strain field. This measurement scheme makes it possible to follow the recovery from the non-equilibrium steady state over many orders of magnitude in time. The recovery is described with a relaxation time spectrum that is found to be independent of the amplitude of the non-equilibrium steady state (pump amplitude) and of the environment in which samples reside. The non-equilibrium steady state and its slow recovery are the laboratory realization of phenomena that are found in many physical systems of practical importance.

Original languageEnglish (US)
Article number251604
JournalApplied Physics Letters
Volume111
Issue number25
DOIs
StatePublished - Dec 18 2017

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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