Altuhafi, F;
Baudet, BA;
Coop, MR;
(2023)
An investigation of the applicability of contact models to the normal load-deformation behaviour of artificially shaped granite.
Acta Geotechnica
10.1007/s11440-023-02123-9.
(In press).
Preview |
Text
Coop_ investigation of the applicability of contact models_s11440-023-02123-9.pdf Download (1MB) | Preview |
Abstract
The validity of different available contact models is tested against experimental data for contact normal loading of artificially shaped granite stones. Three elastic models and two plastic models were tested with different combinations of contact shape (spherical, conical and flat) and roughnesses. It was found that the deviation from the Hertz model increased with surface roughness with a generally better representation of the data achieved by using models which consider surface roughness and the fractality of the surface. The validity of all these models seems to be limited to before excessive plastic deformations start taking place, after which the contact seems to deform under constant stiffness.
| Type: | Article |
|---|---|
| Title: | An investigation of the applicability of contact models to the normal load-deformation behaviour of artificially shaped granite |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/s11440-023-02123-9 |
| Publisher version: | https://doi.org/10.1007/s11440-023-02123-9 |
| Language: | English |
| Additional information: | © The Author(s), 2023. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Contact model, Contact stiffness, Particle surface roughness |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10180311 |
Archive Staff Only
 |
View Item |
