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DEM modelling of granular materials with real shape morphology

Lookup NU author(s): Dr Sadegh NadimiORCiD, Vasileios AngelidakisORCiD



This is the final published version of an article that has been published in its final definitive form by Institute of Industrial Science The University of Tokyo, 2021.

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Particle shape of a non-spherical particle (clump) was reconstructed with the application of X-ray computed tomography (╬╝CT). Shapes of the generated clumps were quantitatively estimated and correlated with the number of spheres (Ns). Subsequently, granular assemblies were prepared using these clumps in DEM simulations. After isotropic consolidation, the void ratio (e0) and mean coordination number ( ) of granular assemblies were correlated with Ns and overall regularity (OR), respectively. The DEM results found Ns=25 for clumps is sufficient to represent the real particle shapes. Meanwhile, e0 and were found to decrease with the increase of OR.

Publication metadata

Author(s): Li Y, Otsubo M, Kuwano R, Nadimi S, Angelidakis V

Publication type: Article

Publication status: Published

Journal: Seisan Kenkyu

Year: 2021

Volume: 73

Issue: 5

Pages: 355-358

Print publication date: 01/12/2021

Online publication date: 01/11/2021

Acceptance date: 16/08/2021

Date deposited: 04/12/2021

ISSN (print): 0037-105X

ISSN (electronic): 1881-2058

Publisher: Institute of Industrial Science The University of Tokyo


DOI: 10.11188/seisankenkyu.73.355


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