Sun, 06 Jul 2008 11:05:25 BST CiteULike: dchens Barabási http://www.citeulike.org/user/dchen/author/Barabási CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2730260 <i>Physical Review E, Vol. 56, No. 6. (1 December 1997), R6271.</i> Maximum angle of stability in wet and dry spherical granular media Réka Albert István Albert Daniel Hornbaker Peter Schiffer Albert-László Barabási doi:10.1103/PhysRevE.56.R6271 Physical Review E, Vol. 56, No. 6. (1 December 1997), R6271. 2008-04-28T15:22:35-00:00 1997 Physical Review E 56 6 R6271 American Physical Society grains structure water http://www.citeulike.org/user/dchen/article/2730248 <i>Physical Review E, Vol. 60, No. 5. (1 November 1999), 5823.</i> Liquid-induced transitions in granular media P Tegzes R Albert M Paskvan AL Barabási T Vicsek P Schiffer doi:10.1103/PhysRevE.60.5823 Physical Review E, Vol. 60, No. 5. (1 November 1999), 5823. 2008-04-28T15:18:49-00:00 1999 Physical Review E 60 5 5823 American Physical Society flow grains http://www.citeulike.org/user/dchen/article/1699153 <i>Physical Review Letters, Vol. 84, No. 22. (29 May 2000), 5122.</i><br /><br />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. Jamming and Fluctuations in Granular Drag I Albert P Tegzes B Kahng R Albert JG Sample M Pfeifer AL Barabási T Vicsek P Schiffer doi:10.1103/PhysRevLett.84.5122 Physical Review Letters, Vol. 84, No. 22. (29 May 2000), 5122. 2007-09-27T03:46:04-00:00 2000 Physical Review Letters 84 22 5122 American Physical Society fluctuation force grains jamming