Abstract
We focus on a triaxial compression at constant pressure in which a granular material, after an isotropic preparation, is sheared in a small range of monotone deformation. The aggregate is made by identical, elastic, spheres that interact through a non central contact forces. Because of the loading condition the material is transversely isotropic. Through a numerical analysis we show that aggregates with same pressure and porosity behave differently depending on the initial coordination number (i.e. the average number of contacts per particle). The relation of stress, volume change, elastic moduli and microstructure with the initial contact network is investigated.
Original language | English |
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Title of host publication | Powders and Grains 2013 |
Subtitle of host publication | Proceedings of the 7th International Conference on Micromechanics of Granular Media |
Editors | Aibing Yu, Kejun Dong, Runyu Yang, Stefan Luding |
Publisher | AIP Publishing LLC |
Pages | 1234-1237 |
Number of pages | 4 |
ISBN (Print) | 978-0-7354-1166-1 |
DOIs | |
Publication status | Published - 1 Aug 2013 |
Event | 7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013 - Sydney, Australia Duration: 8 Jul 2013 → 12 Jul 2013 Conference number: 7 http://www.pg2013.unsw.edu.au/ |
Publication series
Name | AIP Conference Proceedings |
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Publisher | AIP Publishing LLC |
Volume | 1542 |
ISSN (Print) | 0094-243X |
ISSN (Electronic) | 1551-7616 |
Conference
Conference | 7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013 |
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Abbreviated title | Powders & Grains |
Country | Australia |
City | Sydney |
Period | 8/07/13 → 12/07/13 |
Internet address |
Keywords
- Anisotropy
- DEM
- Microstructure