The input work expression and the thermodynamics-based modelling framework for unsaturated expansive soils with double porosity

Title: The input work expression and the thermodynamics-based modelling framework for unsaturated expansive soils with double porosity
Creator: Li, Jian; Zhao, Cheng Gang; Cai, Guo Qing; Asreazad, Saman; Xu, Xi Frank; Huang, Qi Di
Relation: Chinese Science Bulletin Vol. 58, Issue 27, p. 3422-3429
Publisher Link: http://dx.doi.org/10.1007/s11434-013-5828-9
Publisher: Springer
Resource Type: journal article
Date: 2013
Description: In this paper, based on the porous media theory, the specific expressions of the total stress and the input work of unsaturated expansive soils with double porosity are proposed, and then the energy-conjugate variables are further derived. We make distinctions between the effects of capillary water and adsorbed water on the soil behaviour, as well as between the deformations of micro- and macrostructure. According to the derived input work expression and the work-energy-dissipation relations for an open multiphase thermodynamic system, we establish a thermodynamics-based modelling framework for unsaturated expansive soils with double porosity.
Subject: double porosity; unsaturated expansive soils; input work; energy-conjugate variables; constitutive model
Identifier: http://hdl.handle.net/1959.13/1299100
Identifier: uon:19783
Identifier: ISSN:1001-6538
Language: eng
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