Granular compaction and stretched exponentials

M. Nicolas (1) , J.-E. Mathonnet (2) , B. Dalloz (1) , P. Sornay (2)

1 IUSTI - Institut universitaire des systèmes thermiques industriels
2 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)

We investigate the physical meaning of the characteristic time $\tau$ and the exponent $\beta$ of the KWW expression widely used to fit the tapped granular compaction

Keywords: stochastic; model; numerical; Granular; stretched; compaction; exponentials

Domains: Physics [physics]; Nuclear Experiment [nucl-ex]; Physics [physics]; Nuclear Theory [nucl-th]

M. Nicolas, J.-E. Mathonnet, B. Dalloz, P. Sornay. Granular compaction and stretched exponentials: Experiments and a numerical stochastic model. Powders and Grains 2017 - the 8th International Conference on Micromechanics of Granular Media, Jul 2017, Montpellier, France. ⟨cea-02438377⟩