TY - JOUR
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
U2 - 10.1051/epjconf/201714015023
DO - 10.1051/epjconf/201714015023
M3 - Conference Contribution
VL - 140
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
SN - 2100-014X
M1 - 15023
T2 - 8th International Conference on Micromechanics on Granular Media
Y2 - 3 July 2017 through 7 July 2017
ER -