Discrete element modelling of granular materials incorporating realistic particle shapes

International Journal of Geo-Engineering

Original Research

Shiva Prashanth Kumar Kodicherla¹ 

[1] Department of Civil, Mining and Process Engineering, Namibia University of Science and Technology, Windhoek, Namibia;

关键词: Discrete element method;    Direct shear test;    Subnetworks;    Clumped particles;   

DOI  :  10.1186/s40703-023-00193-y

 received in 2023-03-14, accepted in 2023-08-22,  发布年份 2023

来源: Springer

【 摘 要 】

This paper proposes an approach to generate realistic particle shapes considering the major plane of orientation of particles in discrete element modelling (DEM). The particle generation framework includes capturing high-quality scanning electron microscope (SEM) images, followed by image processing and generation of clumps using a commonly used multi-sphere (MS) approach in particle flow code (PFC3D). A set of experimental direct shear tests (DST) and subsequent DEM simulations were performed by incorporating realistic particle shapes. The simulation results show a good agreement with those obtained in the laboratory. In addition, the normal stress showed a significant effect on the structural anisotropy of the granular materials.

【 授权许可】

CC BY   
© Korean Geotechnical Society 2023

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