Investigating the micro mechanics of cemented sand using DEM
The discrete element method has been used to investigate the micro mechanics of cemented sand. High pressure drained triaxial tests are modelled in 3D using a flexible membrane which allows the correct deformation to develop. Simulations with up to 12 MPa confining pressure are presented, which ar...
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| Format: | Article |
| Language: | English |
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Wiley
2015
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| Online Access: | http://eprints.nottingham.ac.uk/33339/ http://eprints.nottingham.ac.uk/33339/ http://eprints.nottingham.ac.uk/33339/ http://eprints.nottingham.ac.uk/33339/1/IJ_NAMG_self-arch.pdf |
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nottingham-33339 |
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nottingham-333392018-06-26T12:33:34Z http://eprints.nottingham.ac.uk/33339/ Investigating the micro mechanics of cemented sand using DEM de Bono, John P. McDowell, Glenn R. Wanatowski, Dariusz The discrete element method has been used to investigate the micro mechanics of cemented sand. High pressure drained triaxial tests are modelled in 3D using a flexible membrane which allows the correct deformation to develop. Simulations with up to 12 MPa confining pressure are presented, which are compared with laboratory experiments on a sand with a range of cement contents. Cementation is modelled using ‘parallel bonds’, and various parameters and strength distributions are investigated. Varying levels of cementation are successfully modelled, with the correct qualitative behaviour observed, and the separate effects of cementation and confining pressures demonstrated. The triaxial behaviour is found to be highly influenced by the distribution of bond strengths. Wiley 2015-04-25 Article PeerReviewed application/pdf en http://eprints.nottingham.ac.uk/33339/1/IJ_NAMG_self-arch.pdf de Bono, John P. and McDowell, Glenn R. and Wanatowski, Dariusz (2015) Investigating the micro mechanics of cemented sand using DEM. International Journal for Numerical and Analytical Methods in Geomechanics, 39 (6). pp. 655-675. ISSN 1096-9853 http://onlinelibrary.wiley.com/doi/10.1002/nag.2340/abstract doi:10.1002/nag.2340 doi:10.1002/nag.2340 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
University of Nottingham Malaysia Campus |
| building |
Nottingham Research Data Repository |
| collection |
Online Access |
| language |
English |
| description |
The discrete element method has been used to investigate the micro mechanics of cemented sand. High pressure drained triaxial tests are modelled in 3D using a flexible membrane which allows the correct deformation to develop. Simulations with up to 12 MPa confining pressure are presented, which are compared with laboratory experiments on a sand with a range of cement contents. Cementation is modelled using ‘parallel bonds’, and various parameters and strength distributions are investigated. Varying levels of cementation are successfully modelled, with the correct qualitative behaviour observed, and the separate effects of cementation and confining pressures demonstrated. The triaxial behaviour is found to be highly influenced by the distribution of bond strengths. |
| format |
Article |
| author |
de Bono, John P. McDowell, Glenn R. Wanatowski, Dariusz |
| spellingShingle |
de Bono, John P. McDowell, Glenn R. Wanatowski, Dariusz Investigating the micro mechanics of cemented sand using DEM |
| author_facet |
de Bono, John P. McDowell, Glenn R. Wanatowski, Dariusz |
| author_sort |
de Bono, John P. |
| title |
Investigating the micro mechanics of cemented sand using DEM |
| title_short |
Investigating the micro mechanics of cemented sand using DEM |
| title_full |
Investigating the micro mechanics of cemented sand using DEM |
| title_fullStr |
Investigating the micro mechanics of cemented sand using DEM |
| title_full_unstemmed |
Investigating the micro mechanics of cemented sand using DEM |
| title_sort |
investigating the micro mechanics of cemented sand using dem |
| publisher |
Wiley |
| publishDate |
2015 |
| url |
http://eprints.nottingham.ac.uk/33339/ http://eprints.nottingham.ac.uk/33339/ http://eprints.nottingham.ac.uk/33339/ http://eprints.nottingham.ac.uk/33339/1/IJ_NAMG_self-arch.pdf |
| first_indexed |
2018-09-06T12:20:55Z |
| last_indexed |
2018-09-06T12:20:55Z |
| _version_ |
1610860678101336064 |