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Chin. Phys. B, 2010, Vol. 19(3): 034601    DOI: 10.1088/1674-1056/19/3/034601

Effects of granular size on stress transmission in a granular column

Abdul Qadir(阿不都拉)a), Shi Qing-Fan(史庆藩) a), Liang Xuan-Wen(梁宣文)a), and Sun Gang(孙刚) b)†
a Department of Physics, Beijing Institute of Technology, Beijing 100081, China; b Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
Abstract  We investigate the deflection and the fluctuation of stresses due to different sizes of granular material in a cylindrical column. It is experimentally observed that the saturation mass systemically increases with granule diameter . The results indicate the shielding of vertical stress in silo is varying. We show that the ratio between the horizontal and the vertical stresses, K, decreases with the increase in grainule diameter d. In addition, it has also been found that the presence of larger granules leads to stronger stress fluctuation on the bottom plate of silo.
Keywords:  fluctuations      stress transmission granular materials  
Received:  07 June 2009      Revised:  19 July 2009      Accepted manuscript online: 
PACS:  45.70.-n (Granular systems)  
  46.70.De (Beams, plates, and shells)  
  46.35.+z (Viscoelasticity, plasticity, viscoplasticity)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos.~10675018 and 10674157).

Cite this article: 

Abdul Qadir(阿不都拉), Shi Qing-Fan(史庆藩), Liang Xuan-Wen(梁宣文), and Sun Gang(孙刚) Effects of granular size on stress transmission in a granular column 2010 Chin. Phys. B 19 034601

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