Shearing of frictional sphere packings
| Autor: | Métayer, Jean-François, Suntrup III, Donald J., Radin, Charles, Swinney, Harry L., Schröter, Matthias |
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| Rok vydání: | 2010 |
| Předmět: | |
| Zdroj: | EPL 93 64003 (2011) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1209/0295-5075/93/64003 |
| Popis: | We measure shear response in packings of glass beads by pulling a thin, rough, metal plate vertically through a bed of volume fraction phi, which is set, before the plate is pulled, in the range 0.575 to 0.628. The yield stress is velocity independent over 4 decades and increases exponentially with phi, with a transition at phi approximately 0.595. An analysis of the measured force fluctuations indicates that the shear modulus is significantly smaller than the bulk modulus. Comment: minor changes, added reference |
| Databáze: | arXiv |
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