Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite

Ayman A. Abed; Wojciech T. Solowski

doi:10.1061/9780784481684.034

Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite

^*Corresponding author for this work

Department of Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

2 Citations (Scopus)

Abstract

This paper discusses the introduction of effects related to the bentonite microstructure into a new fully coupled thermo-hydro-mechanical (THM) finite element code. After a brief review of the governing balance equations and their implementation, the paper discusses in greater details the material microstructure effect on the hydraulic behaviour of bentonite and how to incorporate it in the modelling framework. Based on the experimental data for the MX-80 bentonite, the parameters needed for the new formulation are calibrated and employed in modelling of a constant volume infiltration experiment. The obtained swelling pressure from the numerical simulation is in good agreement with experimental results and improved when compared to the simulation which does not take into account bentonite microstructure. The framework enhancement allows also for a better understanding of the microstructure role in the macroscopically observed bentonite behaviour.

Original language	English
Title of host publication	PANAM UNSATURATED SOILS 2017: FUNDAMENTALS
Editors	LR Hoyos, JS McCartney, SL Houston, WJ Likos
Publisher	American Society of Civil Engineers
Pages	330-339
Number of pages	10
ISBN (Electronic)	9780784481684
DOIs	https://doi.org/10.1061/9780784481684.034
Publication status	Published - 2018
MoE publication type	A4 Conference publication
Event	Pan-American Conference on Unsaturated Soils - Dallas, United States Duration: 12 Nov 2017 → 15 Nov 2017 Conference number: 2

Publication series

Name	Geotechnical Special Publication
Publisher	AMER SOC CIVIL ENGINEERS
Number	301
ISSN (Print)	0895-0563

Conference

Conference	Pan-American Conference on Unsaturated Soils
Abbreviated title	PanAm-UNSAT
Country/Territory	United States
City	Dallas
Period	12/11/2017 → 15/11/2017

Keywords

BARCELONA BASIC MODEL
STRESS INTEGRATION
UNSATURATED SOILS
EQUATIONS
IMPLEMENTATION
BEHAVIOR
CLAYS

Access to Document

10.1061/9780784481684.034

Cite this

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title = "Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite",

abstract = "This paper discusses the introduction of effects related to the bentonite microstructure into a new fully coupled thermo-hydro-mechanical (THM) finite element code. After a brief review of the governing balance equations and their implementation, the paper discusses in greater details the material microstructure effect on the hydraulic behaviour of bentonite and how to incorporate it in the modelling framework. Based on the experimental data for the MX-80 bentonite, the parameters needed for the new formulation are calibrated and employed in modelling of a constant volume infiltration experiment. The obtained swelling pressure from the numerical simulation is in good agreement with experimental results and improved when compared to the simulation which does not take into account bentonite microstructure. The framework enhancement allows also for a better understanding of the microstructure role in the macroscopically observed bentonite behaviour.",

keywords = "BARCELONA BASIC MODEL, STRESS INTEGRATION, UNSATURATED SOILS, EQUATIONS, IMPLEMENTATION, BEHAVIOR, CLAYS",

author = "Abed, {Ayman A.} and Solowski, {Wojciech T.}",

year = "2018",

doi = "10.1061/9780784481684.034",

language = "English",

series = "Geotechnical Special Publication",

publisher = "American Society of Civil Engineers",

number = "301",

pages = "330--339",

editor = "LR Hoyos and JS McCartney and SL Houston and WJ Likos",

booktitle = "PANAM UNSATURATED SOILS 2017: FUNDAMENTALS",

address = "United States",

note = "Pan-American Conference on Unsaturated Soils, PanAm-UNSAT ; Conference date: 12-11-2017 Through 15-11-2017",

}

Abed, AA & Solowski, WT 2018, Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite. in LR Hoyos, JS McCartney, SL Houston & WJ Likos (eds), PANAM UNSATURATED SOILS 2017: FUNDAMENTALS. Geotechnical Special Publication, no. 301, American Society of Civil Engineers, pp. 330-339, Pan-American Conference on Unsaturated Soils, Dallas, Texas, United States, 12/11/2017. https://doi.org/10.1061/9780784481684.034

Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite. / Abed, Ayman A.; Solowski, Wojciech T.
PANAM UNSATURATED SOILS 2017: FUNDAMENTALS. ed. / LR Hoyos; JS McCartney; SL Houston; WJ Likos. American Society of Civil Engineers, 2018. p. 330-339 (Geotechnical Special Publication; No. 301).

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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AU - Abed, Ayman A.

AU - Solowski, Wojciech T.

N1 - Conference code: 2

PY - 2018

Y1 - 2018

N2 - This paper discusses the introduction of effects related to the bentonite microstructure into a new fully coupled thermo-hydro-mechanical (THM) finite element code. After a brief review of the governing balance equations and their implementation, the paper discusses in greater details the material microstructure effect on the hydraulic behaviour of bentonite and how to incorporate it in the modelling framework. Based on the experimental data for the MX-80 bentonite, the parameters needed for the new formulation are calibrated and employed in modelling of a constant volume infiltration experiment. The obtained swelling pressure from the numerical simulation is in good agreement with experimental results and improved when compared to the simulation which does not take into account bentonite microstructure. The framework enhancement allows also for a better understanding of the microstructure role in the macroscopically observed bentonite behaviour.

AB - This paper discusses the introduction of effects related to the bentonite microstructure into a new fully coupled thermo-hydro-mechanical (THM) finite element code. After a brief review of the governing balance equations and their implementation, the paper discusses in greater details the material microstructure effect on the hydraulic behaviour of bentonite and how to incorporate it in the modelling framework. Based on the experimental data for the MX-80 bentonite, the parameters needed for the new formulation are calibrated and employed in modelling of a constant volume infiltration experiment. The obtained swelling pressure from the numerical simulation is in good agreement with experimental results and improved when compared to the simulation which does not take into account bentonite microstructure. The framework enhancement allows also for a better understanding of the microstructure role in the macroscopically observed bentonite behaviour.

KW - BARCELONA BASIC MODEL

KW - STRESS INTEGRATION

KW - UNSATURATED SOILS

KW - EQUATIONS

KW - IMPLEMENTATION

KW - BEHAVIOR

KW - CLAYS

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BT - PANAM UNSATURATED SOILS 2017: FUNDAMENTALS

A2 - Hoyos, LR

A2 - McCartney, JS

A2 - Houston, SL

A2 - Likos, WJ

PB - American Society of Civil Engineers

T2 - Pan-American Conference on Unsaturated Soils

Y2 - 12 November 2017 through 15 November 2017

ER -

Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite

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VYR THEBES 2017

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Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

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VYR THEBES 2017

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