| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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The Nature of Stresses in a Giant Static Granular Column |
| GE Bao-Liang1, SHI Qing-Fan1, RAM Chand1, 3, HE Jian-Feng1, MA Shao-Peng2** |
1School of Physics, Beijing Institute of Technology, Beijing 100081
2School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081
3Government Girls Degree College, Shahdadpur, Sindh, Pakistan
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| Cite this article: |
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GE Bao-Liang, SHI Qing-Fan, RAM Chand et al 2013 Chin. Phys. Lett. 30 048101 |
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Abstract We systematically investigate the mean pressure measurements at the bottom of a giant static granular column. If a constant overload is placed on top of the bed, the pressure observed displays linearity in overload and non-monotonic in column height. This result is in contradiction with the classical Janssen model. However it is in good agreement with the oriented stress linearity (OSL) model which reveals a local, linear relation between stress components. We conclude that the OSL model works well not only in a tiny static granular column but also in a giant static granular column.
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Received: 31 December 2012
Published: 28 April 2013
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| PACS: |
81.05.Rm
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(Porous materials; granular materials)
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45.70.Cc
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(Static sandpiles; granular compaction)
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45.70.Vn
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(Granular models of complex systems; traffic flow)
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