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An Experimental Study of the Fluctuations in Granular Drag

Published online by Cambridge University Press:  01 February 2011

István Albert ,
Pál Tegzes ,
Réka Albert ,
John Sample ,
Albert-László Barabási ,
Tamás Vicsek ,
B. Kahng  and
Peter Schiffer
István Albert
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556
Pál Tegzes
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556 Department of Biological Physics, Eötvös University, Budapest 1117, Hungary
Réka Albert
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556
John Sample
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556
Albert-László Barabási
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556
Tamás Vicsek
Affiliation:
Department of Biological Physics, Eötvös University, Budapest 1117, Hungary
B. Kahng
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556 Dept. of Physics, Konhuk University, Seoul 143–701, Korea
Peter Schiffer
Affiliation:
Department of Physics, University of Notre Dame, Notre Dame, IN 46556
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Abstract

We study fluctuations in the drag force resisting the motion of an object being pulled through a dense spherical granular medium. These fluctuations are stick-slip in nature due to the jamming and reorganization of the grains. The fluctuations in the force are periodic at small depths, but they become “stepped” at large depths. We interpret this transition as a consequence of the long-range nature of the force chains.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 627: Symposium BB – The Granular State , 2000 , BB7.7
Copyright
Copyright © Materials Research Society 2000

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References

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