Abstract
This paper presents the numerical DEM simulation of shear tests on two-dimensional clay-like specimens. Clay particles are modelled as rod-shaped elements made of spherical elementary units. The contact laws implemented in the adopted DEM framework account for both the mechanical interaction developing between particles in contact, and the long-range electro-chemical interaction in the form of Coulombian attraction/repulsion between charged particles. Virtual specimens for shear testing are obtained via the one-dimensional compression and unloading of clay-like particle assemblies, in order to study the effect of different over consolidation ratios on the macroscopic mechanical behaviour. The DEM framework is challenged against its ability to reproduce qualitatively key aspects of the macroscopic behaviour of normally consolidated and over consolidated clays during shearing, including contractive and dilative behaviour, and monotonic and non-monotonic stress-strain behaviour.
Original language | English |
---|---|
Title of host publication | 7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019 |
Editors | Erdin Ibraim, Alessandro Tarantino |
Publisher | EDP Sciences |
ISBN (Electronic) | 9782759890644 |
DOIs | |
Publication status | Published - 25 Jun 2019 |
Event | 7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019 - Strathclyde's Technology & Innovation Centre, Glasgow, United Kingdom Duration: 26 Jun 2019 → 28 Jun 2019 Conference number: 7 https://www.is-glasgow2019.org.uk/ |
Publication series
Name | E3S Web of Conferences |
---|---|
Volume | 92 |
ISSN (Print) | 2555-0403 |
ISSN (Electronic) | 2267-1242 |
Conference
Conference | 7th International Symposium on Deformation Characteristics of Geomaterials, IS-Glasgow 2019 |
---|---|
Abbreviated title | IS-Glasgow 2019 |
Country/Territory | United Kingdom |
City | Glasgow |
Period | 26/06/19 → 28/06/19 |
Internet address |