DEM modelling of granular materials with real shape morphology

Li Y, Otsubo M, Kuwano R, Nadimi S, Angelidakis V (2021)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2021

Journal

Seisan Kenkyu Institute of Industrial Science at the University of Tokyo

URI: https://www.jstage.jst.go.jp/article/seisankenkyu/73/5/73_355/_article/-char/en#author-information-wrap

DOI: 10.11188/seisankenkyu.73.355

Open Access Link: https://www.jstage.jst.go.jp/article/seisankenkyu/73/5/73_355/_article/-char/en

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.

Authors with CRIS profile

Vasileios Angelidakis Lehrstuhl für Multiscale Simulation of Particulate Systems (MSS)

Involved external institutions

University of Tokyo

Japan (JP) Newcastle University

United Kingdom (GB)

How to cite

APA:

Li, Y., Otsubo, M., Kuwano, R., Nadimi, S., & Angelidakis, V. (2021). DEM modelling of granular materials with real shape morphology. Seisan Kenkyu. https://doi.org/10.11188/seisankenkyu.73.355

MLA:

Li, Yang, et al. "DEM modelling of granular materials with real shape morphology." Seisan Kenkyu (2021).

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