A microstructural cam clay model for hydro-mechanical behavior of unsaturated soils

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Title:	A microstructural cam clay model for hydro-mechanical behavior of unsaturated soils
Author:	Cordao Neto, Manoel Porfirio; Lima Lopes, Bruna de Carvalho Faria; dos Anjos Mascarenha, Marcia Maria; Romero Morales, Enrique Edgar
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. MSR - Mecànica del Sòls i de les Roques
Abstract:	In this paper, two new state variables are included in a conventional elastoplastic model, Modified Cam-clay, to incorporate the influence of pore size distribution changes in the mechanical behavior of unsaturated soils. The first state variable allows capturing the influence of large pore changes in the mechanical behavior, and is controlled by an evolution law that incorporates plastic volumetric strain. The second state variable is added to reproduce suction effects and the evolution of this variable is also controlled by plastic volumetric strain. The new approach is validated against a variety of experimental data of high porosity soils.
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Mecànica de sòls -Clay soils -High porosity soils -Mechanical behavior -New state variables -Unsaturated soils -Sòls argilosos
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Document type:	Article - Submitted version Article
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