Chapter
Apr 26, 2012
Numerical Analysis of Porosity of Granular Materials
Authors: Wan-qing Huang [email protected], Yang Lu, Jun Liao, and Chang-xuan HeAuthor Affiliations
Publication: International Conference on Transportation Engineering 2007
Abstract
Upon deposition of spherical particles, a discrete element program which was developed on the platform of VC++ was applied to simulate the re-location of particles under vibration. Computed results show that decreasing the relative dimension of the boundary (ratio of particle's diameter to the length of cubic container) decreases porosity of monosized spheres. For binary mixtures (the small-to-large size ratio is 1: 2) of spherical particles, as the solid volume fraction of the smaller particles increases, the porosity of mixtures will decrease to minimum and then increase. The proposed simulation technique was validated by the physical experiments of packing gravels. Taping mechanism was introduced to the program frame to simulate vibration during packing.
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© 2007 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Analysis (by type)
- Continuum mechanics
- Discrete element method
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Granular materials
- Material mechanics
- Material properties
- Materials characterization
- Materials engineering
- Methodology (by type)
- Mixtures
- Models (by type)
- Motion (dynamics)
- Numerical analysis
- Numerical methods
- Numerical models
- Particles
- Porosity
- Solid mechanics
- Vibration
Authors
Affiliations
School of Civil Engineering, Southwest Jiaotong University, Cheng Du, China. E-mail: [email protected]
Yang Lu
School of Civil Engineering, Southwest Jiaotong University, Cheng Du, China
Jun Liao
School of Civil Engineering, Southwest Jiaotong University, Cheng Du, China
Chang-xuan He
School of Civil Engineering, Southwest Jiaotong University, Cheng Du, China
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