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
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.
(Granular models of complex systems; traffic flow)
引用本文:
. [J]. 中国物理快报, 2013, 30(4): 48101-048101.
GE Bao-Liang, SHI Qing-Fan, RAM Chand, HE Jian-Feng, MA Shao-Peng. The Nature of Stresses in a Giant Static Granular Column. Chin. Phys. Lett., 2013, 30(4): 48101-048101.