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A comparative micromechanical analysis of the effective properties of a geomaterial: Effect of mineralogical compositions

Abstract : In order to provide a physical interpretation of the variation of the mechanical properties of Callovo-Oxfordian argillite with mineral composition, we implement three linear homogenization schemes. The argillite is modeled as a three phase material composed of a clay matrix and inclusions of quartz and calcite. It is shown that, unlike the dilute scheme and the self-consistent scheme, the Mori-Tanaka model describes the in situ experimental data well. The determined properties are finally used in a finite element computation. The aim is to evaluate the effect of mineral composition on the elastic response of the excavation of a vertical shaft in the context of the underground laboratory of Meuse/Haute Marne.
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https://hal.archives-ouvertes.fr/hal-00525914
Contributor : Marie-Christine Nodot <>
Submitted on : Wednesday, October 13, 2010 - 11:16:57 AM
Last modification on : Friday, March 6, 2020 - 2:30:04 PM

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Ariane Abou-Chakra Guéry, Fabrice Cormery, Jian-Fu Shao, Djimedo Kondo. A comparative micromechanical analysis of the effective properties of a geomaterial: Effect of mineralogical compositions. Computers and Geotechnics, Elsevier, 2010, 37 (5), pp.585-593. ⟨10.1016/j.compgeo.2010.02.008⟩. ⟨hal-00525914⟩

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