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

Ayman A. Abed^*, Wojciech T. Solowski

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Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference contribution › Scientific › vertaisarvioitu

1 Sitaatiot (Scopus)

Abstrakti

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.

Alkuperäiskieli	Englanti
Otsikko	PANAM UNSATURATED SOILS 2017: FUNDAMENTALS
Toimittajat	LR Hoyos, JS McCartney, SL Houston, WJ Likos
Kustantaja	American Society of Civil Engineers
Sivut	330-339
Sivumäärä	10
ISBN (elektroninen)	9780784481684
DOI - pysyväislinkit	https://doi.org/10.1061/9780784481684.034
Tila	Julkaistu - 2018
OKM-julkaisutyyppi	A4 Artikkeli konferenssijulkaisuussa
Tapahtuma	Pan-American Conference on Unsaturated Soils - Dallas, Yhdysvallat Kesto: 12 marrask. 2017 → 15 marrask. 2017 Konferenssinumero: 2

Julkaisusarja

Nimi	Geotechnical Special Publication
Kustantaja	AMER SOC CIVIL ENGINEERS
Numero	301
ISSN (painettu)	0895-0563

Conference

Conference	Pan-American Conference on Unsaturated Soils
Lyhennettä	PanAm-UNSAT
Maa/Alue	Yhdysvallat
Kaupunki	Dallas
Ajanjakso	12/11/2017 → 15/11/2017

Pääsy asiakirjaan

10.1061/9780784481684.034

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Link to publication in Scopus

1 Päättynyt

VYR THEBES 2017
Sołowski, W. & Abed, A.
01/01/2017 → 31/01/2018
Projekti: Other external funding: Other government funding

Siteeraa tätä

Abed, A. A., & Solowski, W. T. (2018). Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite. teoksessa LR. Hoyos, JS. McCartney, SL. Houston, & WJ. Likos (Toimittajat), PANAM UNSATURATED SOILS 2017: FUNDAMENTALS (Sivut 330-339). (Geotechnical Special Publication; Nro 301). American Society of Civil Engineers. https://doi.org/10.1061/9780784481684.034

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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. julkaisussa LR Hoyos, JS McCartney, SL Houston & WJ Likos (toim), PANAM UNSATURATED SOILS 2017: FUNDAMENTALS. Geotechnical Special Publication, Nro 301, American Society of Civil Engineers, Sivut 330-339, Pan-American Conference on Unsaturated Soils, Dallas, Texas, Yhdysvallat, 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. toim. / LR Hoyos; JS McCartney; SL Houston; WJ Likos. American Society of Civil Engineers, 2018. s. 330-339 (Geotechnical Special Publication; Nro 301).

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Conference contribution › Scientific › vertaisarvioitu

TY - GEN

T1 - Material Microstructure Effects in Thermo-Hydro-Mechanical Modelling of Bentonite

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

UR - http://www.scopus.com/inward/record.url?scp=85049662615&partnerID=8YFLogxK

U2 - 10.1061/9780784481684.034

DO - 10.1061/9780784481684.034

M3 - Conference contribution

T3 - Geotechnical Special Publication

SP - 330

EP - 339

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

Abstrakti

Julkaisusarja

Conference

Pääsy asiakirjaan

SFX-saatavuus

Muut tiedostot ja linkit

Sormenjälki

Projektit

VYR THEBES 2017

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