HAL will be down for maintenance from Friday, June 10 at 4pm through Monday, June 13 at 9am. More information
Skip to Main content Skip to Navigation
Journal articles

Creep and fluidity of a real granular packing near jamming

Abstract : We study the internal dynamical processes taking place in a granular packing below yield stress. At all packing fractions and down to vanishingly low applied shear, a logarithmic creep is observed. The experiments are analyzed using a viscoelastic model which introduces an internal, time-dependent, fluidity variable. For all experiments, the creep dynamics can be rescaled onto a unique curve which displays jamming at the random-close-packing limit. At each packing fraction, we measure a stress corresponding to the onset of internal granular reorganization and a slowing down of the creep dynamics before the final yield.
Complete list of metadata

Cited literature [12 references]  Display  Hide  Download

Contributor : Nathalie Pothier Connect in order to contact the contributor
Submitted on : Tuesday, September 27, 2011 - 9:40:59 AM
Last modification on : Thursday, April 7, 2022 - 1:58:09 PM
Long-term archiving on: : Tuesday, November 13, 2012 - 2:35:59 PM


Publisher files allowed on an open archive



van Bau Nguyen, Thierry Darnige, Ary Bruand, Eric Clément. Creep and fluidity of a real granular packing near jamming. Physical Review Letters, American Physical Society, 2011, 107, 5 p. ⟨10.1103/PhysRevLett.107.138303⟩. ⟨insu-00626361⟩



Record views


Files downloads