Chapter
Apr 26, 2012
Three-Dimensional DEM Modeling of Triaxial Compression of Sands
Publication: Soil Behavior and Geo-Micromechanics
Abstract
The three-dimensional discrete element method code (PFC3D) was used to model triaxial compression tests on sands and the results were compared with physical laboratory tests. The sand particles were modeled by unbreakable 2-sphere clumps, so that interlocking between particles, which yielded more stable and efficient force chains, could take place. This was confirmed by comparing the results modeled by 2-sphere clumps with the results of tests where particles were modeled by single spheres. In addition to global stress and strain response, void ratios and coordination numbers were monitored at different locations within the specimens throughout the shearing process, and their evolution was evaluated to see whether localization existed within the specimens.
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Published In
Soil Behavior and Geo-Micromechanics
Pages: 220 - 226
Copyright
© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Graduate Research Assistant, School of Civil & Environmental Engineering, Georgia Institute of Technology, 210 Technology Circle, Savannah, GA 31407, USA.E-mail: [email protected]
Professor, School of Civil & Environmental Engineering, Georgia Institute of Technology, 210 Technology Circle, Savannah, GA 31407, USA.E-mail: [email protected]
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