Rigidity of a Vibrated Amorphous Bi-Dimensional Packing of Grains - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Progress of Theoretical Physics -- Supplement- Année : 2010

Rigidity of a Vibrated Amorphous Bi-Dimensional Packing of Grains

Corentin Coulais

Résumé

The Jamming transition can be seen as a general phenomenon occurring whenever a dense assembly of "things" gets stuck and resists to an externally applied shear stress. The mechanical response of a vibrated amorphous hi-dimensional packing of grains close to the Jamming transition is investigated. Stress is applied to the media through a constant torque rheometer while surface fraction is tuned around the jamming transition. The rheometer turns, no matter how low is the applied torque. However, its motion is strongly intermittent and displays scale invariance, the fluctuations being maximal at the Jamming transition, where dynamical correlation length had been found to be divergent. We compare our results to previous ones obtained while dragging an intruder at constant force in the same experimental set-up.

Dates et versions

hal-01422395 , version 1 (25-12-2016)

Identifiants

Citer

Corentin Coulais, Olivier Dauchot. Rigidity of a Vibrated Amorphous Bi-Dimensional Packing of Grains. Progress of Theoretical Physics -- Supplement-, 2010, 184, pp.134-142. ⟨10.1143/PTPS.184.134⟩. ⟨hal-01422395⟩
35 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More