Discrete Element Modeling of 3D Irregularly-Shaped Particles

M.M. Mollanouri, A.A. Mirghasemi

In the proceedings of: GEO2011: 64th Canadian Geotechnical Conference, 14th Pan-American Conference on Soil Mechanics and Geotechnical Engineering, 5th Pan-American Conference on Teaching and Learning of Geotechnical Engineering

Session: Laboratory Testing

ABSTRACT: To model the behaviour of granular materials, al that granular particles being simulated the same as real ones in the nature. The method that is employed in this paper is in e to the reality. In this way, the real shape of grain is modeled by combining arbitrary number of overlapping spheres, which are connected to each other in a rigid way. A program that is based on Discrete Element Method (DEM) has been developed which makes necessary changes to accommodate real grain shape rather than the traditional spherical modeling. In the purpose of comparing the effects of grains shape on mechanical behavior of granular soils, three types of grains, high angular, medium angular, and round grains are modeled. Several triaxial tests are performed on assemblies with different grain types. The results demonstrate that the angularity of grains is considerably affecting the behavior of soil.

RÉSUMÉ: formes rforme de la graine. Dans cette façon la forme réelle de la graine an arbitraire des éléments sphériques qui ont des liens et qui se joignent rigidement. Alors un programme a été écrit, basé sur la méthode des éléments discrets (MED) qui fait des changements necessaires pour préparer la forme réelle de la graine au lieu du modelage sphérique traditionnel. Trois types de la graine, aïgu, moyen et rond, ont été modélés pour sultants démontrent que les angles superficiels des

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Cite this article:
M.M. Mollanouri; A.A. Mirghasemi (2011) Discrete Element Modeling of 3D Irregularly-Shaped Particles in GEO2011. Ottawa, Ontario: Canadian Geotechnical Society.

@article{GEO11Paper235,author = M.M. Mollanouri; A.A. Mirghasemi ,title = Discrete Element Modeling of 3D Irregularly-Shaped Particles,year = 2011}