Abstract
This paper studies rheological properties of ellipsoidal particles in a model annular shear cell and compares them with the relevant parameters obtained for spherical particles under similar conditions using the discrete element method (DEM). Some important microdynamic variables such as velocity, coordination number, volume fraction and stress were considered. It was found that there are some differences between the spherical and ellipsoidal particles in terms of these properties. The feature was explained by the microscopic structures at particle scale such as those related to particle alignment and inter- particle forces.
| Original language | English |
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| Title of host publication | Proceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015 |
| Subtitle of host publication | Barcelona, Spain; 28-30 September 2015 |
| Editors | E. Ornate, D.R.J. Owen, T. Zohdi, M. Bischoff, P. Wriggers |
| Place of Publication | Barcelona Spain |
| Publisher | International Center for Numerical Methods in Engineering (CIMNE) |
| Pages | 833-841 |
| Number of pages | 9 |
| ISBN (Electronic) | 9788494424472 |
| Publication status | Published - 2015 |
| Event | 4th International Conference on Particle-Based Methods, PARTICLES 2015 - Barcelona, Spain Duration: 28 Sept 2015 → 30 Sept 2015 |
Conference
| Conference | 4th International Conference on Particle-Based Methods, PARTICLES 2015 |
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| Country/Territory | Spain |
| City | Barcelona |
| Period | 28/09/15 → 30/09/15 |
Keywords
- Discrete element method
- Ellipsoidal particle
- Granular materials
- Rheology
- Shear cell