Coupled hydro-mechanical model for partially saturated soils based on Cam-Clay plasticity

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00382449" target="_blank" >RIV/68407700:21110/24:00382449 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.compstruc.2023.107206" target="_blank" >https://doi.org/10.1016/j.compstruc.2023.107206</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruc.2023.107206" target="_blank" >10.1016/j.compstruc.2023.107206</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Coupled hydro-mechanical model for partially saturated soils based on Cam-Clay plasticity

Popis výsledku v původním jazyce

This paper presents a numerical model of coupled hydro-mechanical behaviour of partially saturated soils. The model is based on Bishop's effective stress concept and the Cam-Clay model, with the compression stiffness influenced by the effect of partial saturation. The mechanical model is accompanied by the simplified water transport model where the water pressure is the only variable and van Genuchten moisture retention curve was adopted. The governing equations are discretized in the framework of the finite element method, and the resulting model is implemented in the in-house open source software package SIFEL. To improve convergence of the Newton-Raphson method used at the global level of the equilibrium finding, the algorithmic stiffness matrix was derived for the used stress return algorithm. A numerical examples of foundation problem illustrates the effective application of the model and proved that the model can capture wetting collapse.

Název v anglickém jazyce

Coupled hydro-mechanical model for partially saturated soils based on Cam-Clay plasticity

Popis výsledku anglicky

This paper presents a numerical model of coupled hydro-mechanical behaviour of partially saturated soils. The model is based on Bishop's effective stress concept and the Cam-Clay model, with the compression stiffness influenced by the effect of partial saturation. The mechanical model is accompanied by the simplified water transport model where the water pressure is the only variable and van Genuchten moisture retention curve was adopted. The governing equations are discretized in the framework of the finite element method, and the resulting model is implemented in the in-house open source software package SIFEL. To improve convergence of the Newton-Raphson method used at the global level of the equilibrium finding, the algorithmic stiffness matrix was derived for the used stress return algorithm. A numerical examples of foundation problem illustrates the effective application of the model and proved that the model can capture wetting collapse.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA19-11441S" target="_blank" >GA19-11441S: Efektivní a spolehlivé výpočetní techniky pro limitní analýzu a přírůstkové metody v geotechnické stabilitě</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

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

291

Číslo periodika v rámci svazku

107206

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

—

Kód UT WoS článku

001111756000001

EID výsledku v databázi Scopus

2-s2.0-85175719332