Influence of Particle Shape on Behavior of Rockfill Using a Three-Dimensional Deformable DEM
Publication: Journal of Engineering Mechanics
Volume 139, Issue 12
Abstract
The deformable discrete-element method (DEM) was employed to study the effect of particle shape on the macroscopic mechanical behavior of rockfill materials. Relationships among the micromechanical parameters and macroscopic response of rockfill materials were identified by simulating triaxial compression tests on numerical samples. The numerical experiment results showed that the particle shape has a significant impact on the macroscopic response of rockfill. For instance, the peak strength and residual strength of the numerical sample and the axial strain corresponding to the peak strength increased with an increase in the aspect ratio of the particle.
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Acknowledgments
This work was sponsored by the National Natural Science Foundation of China (No. 50839004 and 50979082) and Program for Changjiang Scholars and Innovative Research Team in University (No. IRT1031).
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Published In
Journal of Engineering Mechanics
Volume 139 • Issue 12 • December 2013
Pages: 1868 - 1873
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jun 9, 2011
Accepted: Feb 13, 2013
Published online: Feb 15, 2013
Published in print: Dec 1, 2013
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