Micromechanics of non-active clays in saturated state and DEM modelling

Arianna Gea Pagano; Alessandro Tarantino; Matteo Pedrotti; Vanessa Magnanimo; Kit Windows-Yule; Thomas Weinhart

doi:10.1051/epjconf/201714015023

Micromechanics of non-active clays in saturated state and DEM modelling

Arianna Gea Pagano, Alessandro Tarantino, Matteo Pedrotti, Vanessa Magnanimo, Kit Windows-Yule, Thomas Weinhart

Civil And Environmental Engineering

Research output: Contribution to journal › Conference Contribution

2 Citations (Scopus)

60 Downloads (Pure)

Abstract

The paper presents a conceptual micromechanical model for 1-D compression behaviour of non-active clays in saturated state. An experimental investigation was carried out on kaolin clay samples saturated with fluids of different pH and dielectric permittivity. The effect of pore fluid characteristics on one-dimensional compressibility behaviour of kaolin was investigated. A three dimensional Discrete Element Method (DEM) was implemented in order to simulate the response of saturated kaolin observed during the experiments. A complex contact model was introduced, considering both the mechanical and physico-chemical microscopic interactions between clay particles. A simple analysis with spherical particles only was performed as a preliminary step in the DEM study in the elastic regime.

Original language	English
Article number	15023
Number of pages	4
Journal	EPJ Web of Conferences
Volume	140
DOIs	https://doi.org/10.1051/epjconf/201714015023
Publication status	Published - 3 Jul 2017
Event	8th International Conference on Micromechanics on Granular Media - Montpellier, France Duration: 3 Jul 2017 → 7 Jul 2017

Keywords

discrete element method
kaolin clay
micromechanics

Access to Document

10.1051/epjconf/201714015023Licence: CC BY 4.0

Pagano-etal-EPJWOC-2017-Micromechanics-of-non-active-clays-in-saturated-stateFinal published version, 282 KBLicence: CC BY 4.0

https://www.epj-conferences.org/articles/epjconf/abs/2017/09/epjconf162443/epjconf162443.html

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title = "Micromechanics of non-active clays in saturated state and DEM modelling",

abstract = "The paper presents a conceptual micromechanical model for 1-D compression behaviour of non-active clays in saturated state. An experimental investigation was carried out on kaolin clay samples saturated with fluids of different pH and dielectric permittivity. The effect of pore fluid characteristics on one-dimensional compressibility behaviour of kaolin was investigated. A three dimensional Discrete Element Method (DEM) was implemented in order to simulate the response of saturated kaolin observed during the experiments. A complex contact model was introduced, considering both the mechanical and physico-chemical microscopic interactions between clay particles. A simple analysis with spherical particles only was performed as a preliminary step in the DEM study in the elastic regime.",

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year = "2017",

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T1 - Micromechanics of non-active clays in saturated state and DEM modelling

AU - Pagano, Arianna Gea

AU - Tarantino, Alessandro

AU - Pedrotti, Matteo

AU - Magnanimo, Vanessa

AU - Windows-Yule, Kit

AU - Weinhart, Thomas

PY - 2017/7/3

Y1 - 2017/7/3

N2 - The paper presents a conceptual micromechanical model for 1-D compression behaviour of non-active clays in saturated state. An experimental investigation was carried out on kaolin clay samples saturated with fluids of different pH and dielectric permittivity. The effect of pore fluid characteristics on one-dimensional compressibility behaviour of kaolin was investigated. A three dimensional Discrete Element Method (DEM) was implemented in order to simulate the response of saturated kaolin observed during the experiments. A complex contact model was introduced, considering both the mechanical and physico-chemical microscopic interactions between clay particles. A simple analysis with spherical particles only was performed as a preliminary step in the DEM study in the elastic regime.

AB - The paper presents a conceptual micromechanical model for 1-D compression behaviour of non-active clays in saturated state. An experimental investigation was carried out on kaolin clay samples saturated with fluids of different pH and dielectric permittivity. The effect of pore fluid characteristics on one-dimensional compressibility behaviour of kaolin was investigated. A three dimensional Discrete Element Method (DEM) was implemented in order to simulate the response of saturated kaolin observed during the experiments. A complex contact model was introduced, considering both the mechanical and physico-chemical microscopic interactions between clay particles. A simple analysis with spherical particles only was performed as a preliminary step in the DEM study in the elastic regime.

KW - discrete element method

KW - kaolin clay

KW - micromechanics

UR - https://www.epj-conferences.org/articles/epjconf/abs/2017/09/epjconf162443/epjconf162443.html

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DO - 10.1051/epjconf/201714015023

M3 - Conference Contribution

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JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

SN - 2100-014X

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T2 - 8th International Conference on Micromechanics on Granular Media

Y2 - 3 July 2017 through 7 July 2017

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