A comparison of discrete element and micromechanical methods for determining the effective elastic properties of geomaterials

被引：4
|
作者：
Geer, S. [1 ]
Berger, J. R. [2 ]
Parnell, William J. [3 ]
Mustoe, G. G. W. [2 ]
机构：
[1] Univ Arkansas, Dept Civil Engn, Fayetville, AR 72701 USA
[2] Colorado Sch Mines, Dept Mech Engn, Golden, CO 80401 USA
[3] Univ Manchester, Sch Math, Oxford Rd, Manchester M13 9PL, Lancs, England
来源：
COMPUTERS AND GEOTECHNICS | 2017年 / 87卷
基金：
英国工程与自然科学研究理事会;
关键词：
Homogenization; Discrete element method; Micromechanics; Geomaterials; Polycrystalline self-consistent method; Anisotropy; Stiffness tensor; Hill tensor; Concentration tensor; MODULI; STRAIN; HOMOGENIZATION; TENSORS; STRESS; SHEAR;
D O I：
10.1016/j.compgeo.2017.01.018
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
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. (C) 2017 Elsevier Ltd. All rights reserved.
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页码：1 / 9
页数：9
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