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Volume 37 Issue zk1
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ZHANG Cheng-lin, ZHOU Xiao-wen. Algorithm for modelling three-dimensional shape of sand based on discrete element method[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 115-119. DOI: 10.11779/CJGE2015S1023
Citation: ZHANG Cheng-lin, ZHOU Xiao-wen. Algorithm for modelling three-dimensional shape of sand based on discrete element method[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 115-119. DOI: 10.11779/CJGE2015S1023
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Algorithm for modelling three-dimensional shape of sand based on discrete element method

  • 1. State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510640, China; 2.Guangzhou Institute of Building Science Co., Ltd., Guangzhou 510440, China

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  • Received Date: March 25, 2015
  • Published Date: July 24, 2015
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    • Abstract
  • The mechanical properties and characteristics of sand are significantly affected by particle shape. This paper is mainly aimed to quantify and build the grain shape. A new method based on ODEC (overlapping discrete element cluster) method is proposed. Firstly, the two-dimensional roundness of a particle in three projection planes is extracted through photography, and the weighted average roundness is calculated. Then the weighted average roundness is employed of particles to generate particles with various irregular shapes in numerical model through Matlab code and clump block function of PFC3D.
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    • References (11)
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