Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2009-06-15
Phys. Rev. Lett. 103, 128001 (2009)
Physics
Condensed Matter
Soft Condensed Matter
4 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.103.128001
We investigate experimentally the dynamics of an intruder dragged by a constant force in an assembly of horizontally vibrated grains close to jamming. At moderate packing fractions, the intruder moves rapidly as soon as the force is applied. Above some threshold value of the packing fraction which increases with the applied force, the intruder exhibits an intermittent creep motion with strong fluctuations reminiscent of a crackling noise signal. These fluctuations behave in a critical manner at the jamming transition unveilled in a previous study. The transition separates a regime where the intruder motion is dominated by local free volume rearrangements from a regime where the instantaneous displacement field is strongly heterogeneous and resemble the force chains patterns observed in dense granular packings.
Candelier Raphaël
Dauchot Olivier
No associations
LandOfFree
Creep motion of an intruder within a granular glass close to jamming does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Creep motion of an intruder within a granular glass close to jamming, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Creep motion of an intruder within a granular glass close to jamming will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-316031