Navas, Pedro;
Manzanal, Diego;
Yague, Angel;
Stickle, Miguel M;
Lopez-Querol, Maria Susana;
(2022)
Eigendegradation algorithm applied to visco-plastic weak layers.
Applied Sciences
, 12
(16)
, Article 8175. 10.3390/app12168175.
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Abstract
In geotechnical engineering, very often, the soil behavior varies with time. This is of particular interest in many cases such as embankments in soft clays, shear band progression in slopes or where the speed of the application of the load affects the bearing capacity of the material. In this paper, we study the extension of non-local failures using algorithms such as eigenerosion and eigensoftening, in order to evaluate the failure of weak layers. In particular, the time dependence of the progression of shear bands is analyzed through the integration of a Perzyna-type visco-plastic model with a degradation algorithm within the Optimal Transportation Meshfree (OTM) framework. The validation of the proposed algorithm is carried out through three different practical cases, showing very good agreement in all of them.
| Type: | Article |
|---|---|
| Title: | Eigendegradation algorithm applied to visco-plastic weak layers |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3390/app12168175 |
| Publisher version: | https://doi.org/10.3390/app12168175 |
| Language: | English |
| Additional information: | © 2022 MDPI. This is an open access article distributed under the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/). |
| Keywords: | meshfree numerical modeling; finite deformation; degradation; sensitive clays; visco-plastic behavior |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10153853 |
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