Jamming and Fluctuations in Granular Drag

by: I Albert, P Tegzes, B Kahng, R Albert, JG Sample, M Pfeifer, AL Barabási, T Vicsek, P Schiffer

Physical Review Letters, Vol. 84, No. 22. (29 May 2000), 5122.

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Abstract

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.

@article{citeulike:1699153, abstract = {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.}, author = {Albert, I. and Tegzes, P. and Kahng, B. and Albert, R. and Sample, J. G. and Pfeifer, M. and Barab\'{a}si, A. L. and Vicsek, T. and Schiffer, P. }, citeulike-article-id = {1699153}, doi = {http://dx.doi.org/10.1103/PhysRevLett.84.5122}, journal = {Physical Review Letters}, keywords = {fluctuation, force, grains, jamming}, month = {May}, number = {22}, pages = {5122+}, posted-at = {2008-04-28 16:17:13}, priority = {2}, publisher = {American Physical Society}, title = {Jamming and Fluctuations in Granular Drag}, url = {http://dx.doi.org/10.1103/PhysRevLett.84.5122}, volume = {84}, year = {2000} }

RIS record

TY - JOUR ID - citeulike:1699153 L3 - citeulike-article-id:1699153 N2 - 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. IS - 22 JF - Physical Review Letters TI - Jamming and Fluctuations in Granular Drag PB - American Physical Society VL - 84 SP - 5122 KW - fluctuation KW - force KW - grains KW - jamming AU - Albert, I AU - Tegzes, P AU - Kahng, B AU - Albert, R AU - Sample, JG AU - Pfeifer, M AU - Barabási, AL AU - Vicsek, T AU - Schiffer, P PY - 2000/05/29/ UR - http://dx.doi.org/10.1103/PhysRevLett.84.5122 ER -

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