| Issue |
E3S Web Conf.
Volume 92, 2019
7th International Symposium on Deformation Characteristics of Geomaterials (IS-Glasgow 2019)
|
|
|---|---|---|
| Article Number | 14009 | |
| Number of page(s) | 6 | |
| Section | Discrete Element Modelling | |
| DOI | https://doi.org/10.1051/e3sconf/20199214009 | |
| Published online | 25 June 2019 | |
High resolution incremental stress testing of crushable granular materials
1
University of Dundee, School of Science and Engineering, Fulton Building, Small's Lane, Dundee, DD1 4HR, UK
2
Universitat Politècnica de Catalunya, Dept. Civil and Environmental Engineering, C. Jordi Girona 08034 Barcelona, Spain
* Corresponding author: m.o.ciantia@dundee.ac.uk
The incremental behaviour of crushable sands is investigated by means of a Discrete Element Method (DEM) based analogue. The DEM sample is subjected to a comprehensive set of small stress perturbations in the triaxial plane in order to identify the basic mechanisms contributing to the corresponding strain response. Three contributions to incremental strains are distinguished: elastic, plastic-structural and plastic-crushing. The behaviour observed appears to be consistent with the classic tenets of elasto-plasticity. It is also shown that high resolution probing is required to identify significant features such as elastic anisotropy and irreversible effects on the tangent bulk and shear moduli. As a consequence, computational efficiency is therefore a must for numerical studies of incremental response.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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