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Development of a mixed boundary environment for axi-symmetric DEM analyses

Cui, L and O'Sullivan, C Development of a mixed boundary environment for axi-symmetric DEM analyses In: 5th Int’l Conf. on Micromechanics of Granular Media, 2005-07-18 - ?, Stuttgart, Germany.

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Abstract

Geometrically, axi-symmetric systems are frequently encountered in soil mechanics and geotechnical engineering. This paper proposes a mixed boundary environment for such axi-symmetrical discrete element analyses. In the proposed approach, only one quarter of the system is considered. Two vertical (circumferential) periodic boundaries are used to enforce the conditions for axi-symmetry in the model. The proposed algorithm was implemented in a three-dimensional discrete element code to model axi-symmetric triaxial tests. To facilitate these triaxial test simulations, a cylindrical stress controlled membrane was developed. Simulations of triaxial compression tests on specimens of spheres with regular packing configurations are used to validate the proposed analysis approach.

Item Type: Conference or Workshop Item (Paper)
Additional Information: This is an electronic version of an article published in Garcia-Rojo et al (Eds),Powders & Grains 2005: Proc. 5th Int’l Conf. on Micromechanics of Granular Media Vol. 1 pp.301-305. A.A. Balkema, Rotterdam. The published version can be accessed at http://www.taylorandfrancis.com
Divisions: Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Depositing User: Symplectic Elements
Date Deposited: 01 Feb 2012 17:15
Last Modified: 23 Sep 2013 18:56
URI: http://epubs.surrey.ac.uk/id/eprint/56936

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