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Discrete element modelling of a flexible membrane for triaxial testing of granular material at high pressures

de Bono, John P.; McDowell, Glenn R.; Wanatowski, Dariusz

Authors

John P. de Bono

Dariusz Wanatowski



Abstract

The discrete element method (DEM) has been used to simulate triaxial tests on a bonded material at high pressures. A key feature of the model is the use of a flexible membrane that allows the correct volumetric deformation and the true failure mode to develop while applying constant confining pressure to the triaxial sample. The correct pattern of behaviour has been observed across a wide range of confining pressures, with both shear planes and barrelling failure being observed. The radial pressure applied by the membrane remains constant after large strains and deformation.

Citation

de Bono, J. P., McDowell, G. R., & Wanatowski, D. (2012). Discrete element modelling of a flexible membrane for triaxial testing of granular material at high pressures. Géotechnique Letters, 2(4), https://doi.org/10.1680/geolett.12.00040

Journal Article Type Article
Publication Date Nov 1, 2012
Deposit Date Jul 25, 2014
Publicly Available Date Mar 29, 2024
Journal Géotechnique Letters
Electronic ISSN 2045-2543
Publisher Thomas Telford
Peer Reviewed Peer Reviewed
Volume 2
Issue 4
DOI https://doi.org/10.1680/geolett.12.00040
Keywords laboratory tests; failure; strain localisation; deformation; discrete-element modelling; numerical modelling
Public URL https://nottingham-repository.worktribe.com/output/1006402
Publisher URL http://www.icevirtuallibrary.com/content/article/10.1680/geolett.12.00040
Related Public URLs http://www.icevirtuallibrary.com/content/journals
Additional Information Permission is granted by ICE Publishing to print one copy for personal use. Any other use of these PDF files is subject to reprint fees.

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