Jamming and fluctuations in granular drag

I. Albert, P. Tegzes, B. Kahng, R. Albert, J. G. Sample, M. Pfeifer, A. L. Barabási, T. Vicsek, P. Schiffer

Research output: Contribution to journalArticlepeer-review

151 Scopus citations


We investigate the dynamic evolution of jamming in granular media through fluctuations in the granular drag force. The successive collapse and formation of jammed states give a stick-slip nature to the fluctuations which is independent of the contact surface between the grains and the dragged object, thus implying that the stress-induced collapse is nucleated in the bulk of the granular sample. We also find that while the fluctuations are periodic at small depths, they become “stepped” at large depths, a transition which we interpret as a consequence of the long-range nature of the force chains.

Original languageEnglish (US)
Pages (from-to)5122-5125
Number of pages4
JournalPhysical review letters
Issue number22
StatePublished - 2000
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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