Eigendegradation Algorithm Applied to Visco-Plastic Weak Layers
Source abstract
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.
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Research context
OpenAlex topics: Numerical methods in engineering · Geotechnical Engineering and Soil Mechanics · Geotechnical Engineering and Underground Structures
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Affiliations
ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, Prof. Aranguren 3, 28040 Madrid, Spain
Department of Civil, Environmental and Geomatic Engineering, University College London, Gower Street, London WC1E 6BT, UK
Funding
Ministerio de Ciencia e Innovación · European Research Council-H2020
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