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Chin. Phys. B, 2017, Vol. 26(8): 084503    DOI: 10.1088/1674-1056/26/8/084503

X-ray tomography study on the structure of the granular random loose packing

Yi Xing(邢义), Yu-Peng Qiu(邱宇鹏), Zhi Wang(王智), Jia-Chao Ye(叶佳超), Xiang-Ting Li(李向亭)
Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China

Random loose packing is the minimum-density granular packing which can maintain mechanical stability. In this study, x-ray tomography is used to investigate the internal structure of an isotropically prepared random loose packing through a special apparatus to minimize the effect of gravity. It is found that the minimum packing density is around 0.587. The microscopic structural analysis of the packing is also carried out.

Keywords:  granular systems      random loose packing      x-ray tomography  
Received:  18 January 2017      Revised:  27 March 2017      Accepted manuscript online: 
PACS:  45.70.-n (Granular systems)  
  61.43.-j (Disordered solids)  
  87.59.-e (X-ray imaging)  
  89.75.Fb (Structures and organization in complex systems)  

Project supported by the Thirteenth Shanghai Jiao Tong University Students Innovation Practice Plan, China (Grant No. IPP13086), the National Natural Science Foundation of China (Grant Nos. 11175121, 11675110, and U1432111), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110073120073).

Corresponding Authors:  Xiang-Ting Li     E-mail:
About author:  0.1088/1674-1056/26/8/

Cite this article: 

Yi Xing(邢义), Yu-Peng Qiu(邱宇鹏), Zhi Wang(王智), Jia-Chao Ye(叶佳超), Xiang-Ting Li(李向亭) X-ray tomography study on the structure of the granular random loose packing 2017 Chin. Phys. B 26 084503

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