Abstract
We present precise and reproducible mean pressure measurements at the bottom of a cylindrical granular column. if a constant overload is added, the pressure is linear in overload and nonmonotonic in the column height. The results are quantitatively consistent with a local, linear relation between stress components, as was recently proposed by some of us. They contradict the simplest classical (Janssen) approximation, and may rather severely test competing models.
Original language | English |
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Pages (from-to) | 1439-1442 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 84 |
Issue number | 7 |
DOIs | |
Publication status | Published - 14 Feb 2000 |