Phase transition in a static granular system

@article{Schroter2007, abstract = {We find that a column of glass beads exhibits a well-defined transition between two phases that differ in their resistance to shear. Pulses of fluidization are used to prepare static sedimented states with well-defined particle volume fractions ph in the range 0.57-0.63. The resistance to shear is determined by slowly inserting a rod into the column of beads. Force measurements and bed height measurements both indicate that the transition occurs at ph = 0.60 for a range of speeds of the rod.}, author = {Schr\"{o}ter, Matthias and N\"{a}gle, Sibylle and Radin, Charles and Swinney, Harry L. }, citeulike-article-id = {2698367}, doi = {10.1209/0295-5075/78/44004}, journal = {EPL (Europhysics Letters)}, keywords = {granular\_impact, qual, qualifier}, number = {4}, pages = {44004+}, posted-at = {2008-04-21 23:32:14}, priority = {2}, title = {Phase transition in a static granular system}, url = {http://dx.doi.org/10.1209/0295-5075/78/44004}, volume = {78}, year = {2007} }

TY - JOUR ID - Schroter2007 L3 - citeulike-article-id:2698367 TI - Phase transition in a static granular system JF - EPL (Europhysics Letters) VL - 78 IS - 4 SP - 44004 N2 - We find that a column of glass beads exhibits a well-defined transition between two phases that differ in their resistance to shear. Pulses of fluidization are used to prepare static sedimented states with well-defined particle volume fractions ph in the range 0.57-0.63. The resistance to shear is determined by slowly inserting a rod into the column of beads. Force measurements and bed height measurements both indicate that the transition occurs at ph = 0.60 for a range of speeds of the rod. KW - granular_impact KW - qual KW - qualifier AU - Schröter, Matthias AU - Nägle, Sibylle AU - Radin, Charles AU - Swinney, Harry PY - 2007/// UR - http://dx.doi.org/10.1209/0295-5075/78/44004 ER -