Projects per year
Abstract
A pluviation device for the fabrication of cubical samples of granular materials has been recently developed. The granular material is pluviated under gravitational loading through a rectangular Perspex tube. The pluviator is also designed to allow the control of the height of fall. Using a highspeed camera, observations of sample construction of uniformly graded spherical coarse glass ballotini have been made from one side of the apparatus and macro-scale properties of the created granular assembly (such as void ratio and density) have been assessed. This work focuses on the development of a three-dimensional discrete numerical model, based on the contact dynamics method, which simulates the whole fabrication process and provides detailed investigation of the micro-scale properties (energetic layer) and material inherent fabric (formation of ordered structure and wall effects, distribution of the orientations of the normal particle contacts).
Original language | English |
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Pages (from-to) | 44-51 |
Number of pages | 8 |
Journal | Géotechnique Letters |
Volume | 3 |
DOIs | |
Publication status | Published - 2013 |
Keywords
- discrete-element modelling
- fabric/structure of soils
- laboratory equipment
- laboratory tests
- particle-scale behaviour
- GRANULAR TEMPERATURE
Projects
- 1 Finished