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Article Dans Une Revue EPL - Europhysics Letters Année : 2002

Compaction dynamics of a granular media under vertical tapping

Résumé

We report new experimental results on granular compaction under consecutive vertical taps. The evolution of the mean volume fraction and of the mean potential energy of a granular packing presents a slow densification until a final steady-state, and is reminiscent to usual relaxation in glasses via a stretched exponential law. The intensity of the taps seems to rule the characteristic time of the relaxation according to an Arrhenius's type relation >. Finally, the analysis of the vertical volume fraction profile reveals an almost homogeneous densification in the packing.

Dates et versions

hal-00131674 , version 1 (17-02-2007)

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P. Philippe, D. Bideau. Compaction dynamics of a granular media under vertical tapping. EPL - Europhysics Letters, 2002, 60, pp.677-683. ⟨hal-00131674⟩
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