Extended Barcelona Basic Model for unsaturated soils under cyclic loadings

Pedroso, Dorival M. and Farias, Marcio M. (2011) Extended Barcelona Basic Model for unsaturated soils under cyclic loadings. Computers and Geotechnics, 38 5: 731-740. doi:10.1016/j.compgeo.2011.02.004

Author Pedroso, Dorival M.
Farias, Marcio M.
Title Extended Barcelona Basic Model for unsaturated soils under cyclic loadings
Journal name Computers and Geotechnics   Check publisher's open access policy
ISSN 0266-352X
Publication date 2011-07
Sub-type Article (original research)
DOI 10.1016/j.compgeo.2011.02.004
Volume 38
Issue 5
Start page 731
End page 740
Total pages 10
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2012
Language eng
Formatted abstract
The Barcelona Basic Model (BBM) is an extension of the Cam clay model that has become popular in applications involving unsaturated soils and, in particular, in simulations using the finite element method. Partially saturated soils can be loaded in different ways, for instance, mechanically and/or hydraulically. In addition, cycles of loading and unloading can be applied. The present work introduces a modification of the BBM in order to simplify its computer implementation and also to allow the simulation of elastoplastic behaviour during cycles of both mechanical and hydraulic loading. A unique smooth yield surface is introduced and a two-yield surfaces concept is applied in order to represent the cyclic behaviour. The influence of the intermediate principal stress on the strength is also accounted for. Finally, the numerical integration (stress update) of the extended BBM is briefly discussed.
Keyword Barcelona Basic Model
Cyclic behaviour
Two-yield surfaces
Stress update
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2012 Collection
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 8 times in Scopus Article | Citations
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