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DEM modelling of granular materials with real shape morphology

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

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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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Abstract

Particle shape of a non-spherical particle (clump) was reconstructed with the application of X-ray computed tomography (μCT). Shapes of the generated clumps were quantitatively estimated and correlated with the number of spheres (N_s). 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 N_s and overall regularity (OR), respectively. The DEM results found N_s=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

URL: https://doi.org/10.11188/seisankenkyu.73.355

DOI: 10.11188/seisankenkyu.73.355

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