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Simulation of One-Dimensional Compression of Sand Considering Irregular Grain Shapes and Grain Breakage

Zhu, Fan / Zhao, Jidong

Abstract Natural sand grains possess complex morphologies which evolve significantly through breakage of grains. The numerical modeling of irregular grain shapes and grain breakage remains far from mature. Traditional DEM based approach often suffers from high computational cost. In this paper we introduce an impulse-based dynamics (IBD) approach to simulate irregular shape sand grains with consideration of continuous grain breakage. Simulation of a 1-D compression is presented which showed reasonable results with respect to fractal particle size distribution and normal compression. The presented approach allows more efficient simulation of sand grains in irregular shapes and enables more in-depth study on micro-structural behaviors of sand.

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Simulation of One-Dimensional Compression of Sand Considering Irregular Grain Shapes and Grain Breakage

Zhu, Fan / Zhao, Jidong

Abstract Natural sand grains possess complex morphologies which evolve significantly through breakage of grains. The numerical modeling of irregular grain shapes and grain breakage remains far from mature. Traditional DEM based approach often suffers from high computational cost. In this paper we introduce an impulse-based dynamics (IBD) approach to simulate irregular shape sand grains with consideration of continuous grain breakage. Simulation of a 1-D compression is presented which showed reasonable results with respect to fractal particle size distribution and normal compression. The presented approach allows more efficient simulation of sand grains in irregular shapes and enables more in-depth study on micro-structural behaviors of sand.

Simulation of One-Dimensional Compression of Sand Considering Irregular Grain Shapes and Grain Breakage

Zhu, Fan / Zhao, Jidong

Abstract Natural sand grains possess complex morphologies which evolve significantly through breakage of grains. The numerical modeling of irregular grain shapes and grain breakage remains far from mature. Traditional DEM based approach often suffers from high computational cost. In this paper we introduce an impulse-based dynamics (IBD) approach to simulate irregular shape sand grains with consideration of continuous grain breakage. Simulation of a 1-D compression is presented which showed reasonable results with respect to fractal particle size distribution and normal compression. The presented approach allows more efficient simulation of sand grains in irregular shapes and enables more in-depth study on micro-structural behaviors of sand.

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Titel:

Simulation of One-Dimensional Compression of Sand Considering Irregular Grain Shapes and Grain Breakage

Beteiligte:

Zhu, Fan (Autor:in) / Zhao, Jidong (Autor:in)

Erschienen in:

Proceedings of China-Europe Conference on Geotechnical Engineering ; 279-282

Springer Series in Geomechanics and Geoengineering

Erscheinungsdatum:

01.01.2018

Format / Umfang:

4 pages

ISBN:

978-3-319-97111-7 , 978-3-319-97112-4

ISSN:

1866-8755 , 1866-8763

DOI:

https://doi.org/10.1007/978-3-319-97112-4_63

Medientyp:

Aufsatz/Kapitel (Buch)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

Impulse-based dynamics , Irregular shape , Particle breakage , 1-D compression Engineering , Geoengineering, Foundations, Hydraulics , Geotechnical Engineering & Applied Earth Sciences

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