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Stress-accurate Mixed FEM for soil failure under shallow foundations involving strain localization in plasticity

Author
Benedetti, L.; Cervera, M.; Chiumenti, M.
Type of activity
Journal article
Journal
Computers and geotechnics
Date of publication
2015-03
Volume
64
First page
32
Last page
47
DOI
https://doi.org/10.1016/j.compgeo.2014.10.004 Open in new window
Repository
http://hdl.handle.net/2117/27499 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0266352X14001876 Open in new window
Abstract
The development of slip lines, due to strain localization, is a common cause for failure of soil in many circumstances investigated in geotechnical engineering. Through the use of numerical methods - like finite elements - many practitioners are able to take into account complex geometrical and physical conditions in their analyses. However, when dealing with shear bands, standard finite elements display lack of precision, mesh dependency and locking. This paper introduces a (stabilized) mixed f...
Citation
Benedetti, L.; Cervera, M.; Chiumenti, M. Stress-accurate Mixed FEM for soil failure under shallow foundations involving strain localization in plasticity. "Computers and geotechnics", Març 2015, vol. 64, p. 32-47.
Keywords
DARCY FLOW, Drucker-Prager, EQUATIONS, FINITE-ELEMENT-METHOD, Local plasticity models, Mixed finite elements, STOKES, Shallow foundations, Shear bands, Slip lines, Soil failure, Strain localization, Strain softening, Von Mises
Group of research
(MC)2 - UPC Computational continuum mechanics
RMEE - Strength of Materials and Structural Engineering Research Group

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