A Comparison of Discrete Element and Micromechanical Methods for Determining the Effective Elastic Properties of Geomaterials

S Geer; J. R. Berger; William Parnell; G.G.W Mustoe

doi:10.1016/j.compgeo.2017.01.018

A Comparison of Discrete Element and Micromechanical Methods for Determining the Effective Elastic Properties of Geomaterials

S Geer, J. R. Berger, William Parnell, G.G.W Mustoe

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Abstract

Data generated from scanning electron microscopy images of oil-shale geomaterials are used to generate configurations and to acquire parameters required for use in homogenization schemes for the determination of the effective elastic properties of the samples. Two alternative homogenization methods are employed: numerical simulation using the Discrete Element Method and the Polycrystalline Self-Consistent Method from micromechanics. The schemes give rise to predictions of the effective elastic properties that are in very good agreement.

Original language	English
Pages (from-to)	1-9
Number of pages	9
Journal	Computers and Geotechnics
Volume	87
Early online date	15 May 2017
DOIs	https://doi.org/10.1016/j.compgeo.2017.01.018
Publication status	Published - Jul 2017

Keywords

Homogenization
Discrete element method
micromechanics
Geomaterials
Polycrystalline self-consistent method
Anisotropy
Stiffness tensor
Hill tensor
Concentration tensor

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abstract = "Data generated from scanning electron microscopy images of oil-shale geomaterials are used to generate configurations and to acquire parameters required for use in homogenization schemes for the determination of the effective elastic properties of the samples. Two alternative homogenization methods are employed: numerical simulation using the Discrete Element Method and the Polycrystalline Self-Consistent Method from micromechanics. The schemes give rise to predictions of the effective elastic properties that are in very good agreement.",

keywords = "Homogenization, Discrete element method, micromechanics, Geomaterials, Polycrystalline self-consistent method, Anisotropy, Stiffness tensor, Hill tensor, Concentration tensor",

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AU - Geer, S

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AB - Data generated from scanning electron microscopy images of oil-shale geomaterials are used to generate configurations and to acquire parameters required for use in homogenization schemes for the determination of the effective elastic properties of the samples. Two alternative homogenization methods are employed: numerical simulation using the Discrete Element Method and the Polycrystalline Self-Consistent Method from micromechanics. The schemes give rise to predictions of the effective elastic properties that are in very good agreement.

KW - Homogenization

KW - Discrete element method

KW - micromechanics

KW - Geomaterials

KW - Polycrystalline self-consistent method

KW - Anisotropy

KW - Stiffness tensor

KW - Hill tensor

KW - Concentration tensor

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JF - Computers and Geotechnics

SN - 0266-352X

ER -

A Comparison of Discrete Element and Micromechanical Methods for Determining the Effective Elastic Properties of Geomaterials

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Keywords

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