Ma, Y, Chen, X orcid.org/0000-0002-2053-2448, Hosking, LJ et al. (3 more authors) (2021) The influence of coupled physical swelling and chemical reactions on deformable geomaterials. International Journal for Numerical and Analytical Methods in Geomechanics, 45 (1). pp. 64-82. ISSN 0363-9061
Abstract
Coupled thermo‐hydro‐mechanical‐chemical modelling has attracted attention in past decades due to many contemporary geotechnical engineering applications (e.g., waste disposal, carbon capture and storage). However, molecular‐scale interactions within geomaterials (e.g., swelling and dissolution/precipitation) have a significant influence on the mechanical behaviour, yet are rarely incorporated into existing Thermal‐Hydro‐Mechanical‐Chemical (THMC) frameworks. This paper presents a new coupled hydro‐mechanical‐chemical constitutive model to bridge molecular‐scale interactions with macro‐physical deformation by combining the swelling and dissolution/precipitation through an extension of the new mixture‐coupling theory. Entropy analysis of the geomaterial system provides dissipation energy, and Helmholtz free energy gives the relationship between solids and fluids. Numerical simulation is used to compare with the selected recognized models, which demonstrates that the swelling and dissolution/precipitation processes may have a significant influence on the mechanical deformation of the geomaterials.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2020 John Wiley & Sons, Ltd. This is the peer reviewed version of the following article: Ma, Y, Chen, X‐H, Hosking, LJ, Yu, H‐S, Thomas, HR, Norris, S. The influence of coupled physical swelling and chemical reactions on deformable geomaterials. Int J Numer Anal Methods Geomech. 2020; 1– 19. https://doi.org/10.1002/nag.3134 , which has been published in final form at https://doi.org/10.1002/nag.3134. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | HMC model; mixture‐coupling theory; nonequilibrium thermodynamics; precipitation; swelling and dissolution |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 08 Sep 2020 12:37 |
Last Modified: | 20 Aug 2021 00:38 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1002/nag.3134 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:165230 |