中国物理B ›› 2017, Vol. 26 ›› Issue (8): 84503-084503.doi: 10.1088/1674-1056/26/8/084503

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

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)   

  1. Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 收稿日期:2017-01-18 修回日期:2017-03-27 出版日期:2017-08-05 发布日期:2017-08-05
  • 通讯作者: Xiang-Ting Li E-mail:xtli@sjtu.edu.cn
  • 基金资助:

    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).

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)   

  1. Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2017-01-18 Revised:2017-03-27 Online:2017-08-05 Published:2017-08-05
  • Contact: Xiang-Ting Li E-mail:xtli@sjtu.edu.cn
  • About author:0.1088/1674-1056/26/8/
  • Supported by:

    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).

摘要:

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.

关键词: granular systems, random loose packing, x-ray tomography

Abstract:

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.

Key words: granular systems, random loose packing, x-ray tomography

中图分类号:  (Granular systems)

  • 45.70.-n
61.43.-j (Disordered solids) 87.59.-e (X-ray imaging) 89.75.Fb (Structures and organization in complex systems)