On thermodynamically consistent coupling of the Barcelona Basic Model with a hydraulic model for unsaturated soils

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F23%3A00577491" target="_blank" >RIV/68145535:_____/23:00577491 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0045794923001128?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0045794923001128?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compstruc.2023.107082" target="_blank" >10.1016/j.compstruc.2023.107082</a>

Result language
angličtina
Original language name
On thermodynamically consistent coupling of the Barcelona Basic Model with a hydraulic model for unsaturated soils
Original language description
The Barcelona Basic Model is a mechanical model for unsaturated soils which uses the net stress and suction as independent stress variables. This paper presents a thorough study of its thermodynamically consistent coupling with a hydraulic model. A general framework for poroelastoplasticity formulated in terms of the net stress and suction is developed and then applied to derivation of a consistent hydro–mechanical coupling for the Barcelona Basic Model. The resulting restrictions for description of the hydraulic behaviour are analysed and they are found to be too strict and not completely physically acceptable. It is demonstrated on a model example that the applicability of the resulting hydro–mechanical model is limited. It is concluded that poromechanical models using the net stress and suction as stress variables generally (at least what poroelasticity concerns) should be developed and utilised carefully with respect to the thermodynamical consistency. Otherwise different types of models should be employed for coupled hydro–mechanical modelling.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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