Stick-slip fluctuations in granular drag

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

doi:10.1103/PhysRevE.64.031307

Stick-slip fluctuations in granular drag

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

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We study fluctuations in the drag force experienced by an object moving through a granular medium. The successive formation and collapse of jammed states give a stick-slip nature to the fluctuations which are periodic at small depths but become “stepped” at large depths, a transition that we interpret as a consequence of the long-range nature of the force chains and the finite size of our experiment. Another important finding is that the mean force and the fluctuations appear to be independent of the properties of the contact surface between the grains and the dragged object. These results imply that the drag force originates in the bulk properties of the granular sample.

Original language	English (US)
Pages (from-to)	9
Number of pages	1
Journal	Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Volume	64
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevE.64.031307
State	Published - 2001
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Statistical and Nonlinear Physics
Statistics and Probability

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10.1103/PhysRevE.64.031307

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abstract = "We study fluctuations in the drag force experienced by an object moving through a granular medium. The successive formation and collapse of jammed states give a stick-slip nature to the fluctuations which are periodic at small depths but become “stepped” at large depths, a transition that we interpret as a consequence of the long-range nature of the force chains and the finite size of our experiment. Another important finding is that the mean force and the fluctuations appear to be independent of the properties of the contact surface between the grains and the dragged object. These results imply that the drag force originates in the bulk properties of the granular sample.",

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T1 - Stick-slip fluctuations in granular drag

AU - Albert, I.

AU - Tegzes, P.

AU - Albert, R.

AU - Sample, J. G.

AU - Barabási, A. L.

AU - Vicsek, T.

AU - Kahng, B.

AU - Schiffer, P.

PY - 2001

Y1 - 2001

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AB - We study fluctuations in the drag force experienced by an object moving through a granular medium. The successive formation and collapse of jammed states give a stick-slip nature to the fluctuations which are periodic at small depths but become “stepped” at large depths, a transition that we interpret as a consequence of the long-range nature of the force chains and the finite size of our experiment. Another important finding is that the mean force and the fluctuations appear to be independent of the properties of the contact surface between the grains and the dragged object. These results imply that the drag force originates in the bulk properties of the granular sample.

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Stick-slip fluctuations in granular drag

Abstract

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