Investigating the micro mechanics of cemented sand using DEM
de Bono, J, McDowell, G and Wanatowski, D
(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 0363-9061
Abstract
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 that 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.
Metadata
Authors/Creators:
de Bono, J
McDowell, G
Wanatowski, D
Copyright, Publisher and Additional Information:
(c) 2015, Wiley. This is the peer reviewed version of the following article:de Bono, J, McDowell, G and Wanatowski, D (2015) Investigating the micro mechanics of cemented sand using DEM. International Journal for Numerical and Analytical Methods in Geomechanics, 39 (6). pp. 655-675 , which has been published in final form at https://dx.doi.org/10.1002/nag.2340. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
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