Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/35810
Title: A thermo-chemo-electro-mechanical framework of unsaturated expansive clays
Authors: Lei, XQ
Wong, H
Fabbri, A
Limam, A
Cheng, YM 
Keywords: Thermodynamics
Clausius-Duhem inequality
Multi-species mixture
Chemo-mechanical
Unsaturated expansive soil
Issue Date: 2014
Publisher: Elsevier
Source: Computers and geotechnics, 2014, v. 62, p. 175-192 How to cite?
Journal: Computers and geotechnics 
Abstract: Prediction of the coupled chemo-mechanical behaviours of porous media is an important problem in many areas, i.e., expansive clays in geotechnical and petroleum engineering, engineered barriers in the underground storage of nuclear wastes, and biological tissues in biological engineering. A further complex condition occurs when the voids are not fully saturated by liquid, such that capillary effects cannot be neglected a priori and might play an important role. Focusing on the modelling of expansive clays in the geotechnical field and based on the modified mixture theory, the work presented in this paper contributes to the construction of a theoretical framework used to model such complex coupling behaviours. The Clausius-Duhem inequality, which governs the dissipation associated with mechanical work, phase transformation, mass transport and thermal transport, is rigorously derived. Based on this theoretical framework, a chemo-poro-elastic unsaturated model is developed. The model is subsequently used to simulate the salt solution infiltration process through an unsaturated expansive clayey soil that induces changes in the mechanical and hydraulic field quantities. The logical tendencies are obtained and provide a preliminary demonstration of the capabilities of the newly developed theoretical framework.
URI: http://hdl.handle.net/10397/35810
ISSN: 0266-352X
DOI: 10.1016/j.compgeo.2014.07.004
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

4
Last Week
0
Last month
Citations as of Mar 19, 2017

WEB OF SCIENCETM
Citations

3
Last Week
0
Last month
Citations as of Mar 23, 2017

Page view(s)

12
Last Week
0
Last month
Checked on Mar 26, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.