314 citations · 1k across the 17 of their papers we have counts for
8 papers · 1 filter
Ergodic-nonergodic transition in tapped granular systems: The role of persistent contacts
Paula A. Gago, Diego Maza, Luis A. Pugnaloni
Static granular packs have been studied in the last three decades in the frame of a modified equilibrium statistical mechanics that assumes ergodicity as a basic postulate. The can…
A topological method to characterize tapped granular media from the position of the particles
Sergio Ardanza-Trevijano, Iker Zuriguel, Roberto Arevalo +1
We use the first Betti number of a complex to characterize the morphological structure of granular samples in mechanical equilibrium. We analyze two-dimensional granular packings a…
Flow and clogging in a silo with an obstacle above the orifice
Celia Lozano, Alvaro Janda, Angel Garcimartin +2
In a recent paper [Zuriguel et al., Phys. Rev. Lett. 107, 278001 (2011)] it has been shown that the presence of an obstacle above the outlet can significatively reduce the clogging…
Fluctuations of grains inside a discharging two-dimensional silo
Angel Garcimartín, Iker Zuriguel, Alvaro Janda +1
We present experimental data corresponding to a two dimensional dense granular flow, namely, the gravity-driven discharge of grains from a small opening in a silo. We study the mic…
Master curves for the stress tensor invariants in stationary states of static granular beds. Implications for the thermodynamic phase space
Luis A. Pugnaloni, José Damas, Iker Zuriguel +1
We prepare static granular beds under gravity in different stationary states by tapping the system with pulsed excitations of controlled amplitude and duration. The macroscopic sta…
Role of vibrations in the jamming and unjamming of grains discharging from a silo
Cristian Mankoc, Angel Garcimartin, Iker Zuriguel +2
We present experimental results of the jamming of non-cohesive particles discharged from a flat bottomed silo subjected to vertical vibration. When the exit orifice is only a few g…