Numerical Modeling of Granular Assembly Using Discrete Element Method

Xue Liang Zhao

doi:10.4028/www.scientific.net/AMR.146-147.738

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Microstructural Evolution and Mechanical Properties of AZ91 and SiCp/AZ91 Magnesium Alloys upon Rapid Solidification/Powder Metallurgy Followed by Hot Extrusion
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Numerical Modeling of Granular Assembly Using Discrete Element Method
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A Systematized FMEA Practice for Magnet Relays
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 146-147Numerical Modeling of Granular Assembly Using...

Numerical Modeling of Granular Assembly Using Discrete Element Method

Abstract:

Discrete element method (DEM) is a powerful tool for the study of granular materials. Some issues in numerical modeling of DEM including parameter selection and mass/density scaling method are discussed. A new method to simulate the resin membrane in the laboratory which is more accurate and simpler is proposed. Using DEM, microscale behavior of soil including particle rotation and mesoscale void ratio distribution are analyzed. Failure modes and stain localization are revealed from the particle scale analysis. Configurations of the shear band are investigated. It shows that microstructure and micromechanics is the underlying mechanics of the macroscale behavior of the granular soil. Being a simpler, faster, and cheaper method compared with traditional experimental method, DEM can capture the discrete characteristics and provide deeper insight of the granular materials.

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Periodical:

Advanced Materials Research (Volumes 146-147)

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738-742

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.146-147.738

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Online since:

October 2010

Authors:

Xue Liang Zhao

Keywords:

Discrete Element Method (DEM), Granular Material, Microscale Analysis, Numerical Modeling

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