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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Computers and Structures

ISSN

0045-7949

e-ISSN

1879-2243

Svazek periodika

285

Číslo periodika v rámci svazku

September 2023

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

107082

Kód UT WoS článku

001010760900001

EID výsledku v databázi Scopus

2-s2.0-85160293654