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.
Original language | English (US) |
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Pages (from-to) | 5122-5125 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 84 |
Issue number | 22 |
DOIs | |
State | Published - 2000 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy