Abstract
The macroscopic response of geomaterials is controlled by the processes occurring at the microscale. Understanding these processes is key to interpret experimental data, understand fundamental modes of stress-strain behaviour, inform ‘continuum’ macroscopic constitutive models, and develop quantitative predictive tools based on Discrete Element Method (DEM) approaches. Unlike granular materials, mechanisms at the particle scale controlling macro-mechanical behaviour of clays are still largely ignored. This paper presents an analysis of elementary mechanisms of clay particle interactions with the aim of gaining an insight into behaviour of clay and advance the process of defining suitable contact laws to be implemented into DEM formulations.
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Acknowledgements
This work was funded by the ‘International Research Centre for Clay Micromechanics’ (www.irccm.net) and the ANR project GEO2 (ANR-19-CE05-0003-01). The laboratory 3SR is part of the LabEx Tec 21 (Investissement d’avenir – grant agreement n. ANR-11-LABX-0030).
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Tarantino, A. et al. (2021). Clay Micromechanics: An Analysis of Elementary Mechanisms of Clay Particle Interactions to Gain Insight into Compression Behaviour of Clay. In: Barla, M., Di Donna, A., Sterpi, D. (eds) Challenges and Innovations in Geomechanics. IACMAG 2021. Lecture Notes in Civil Engineering, vol 125. Springer, Cham. https://doi.org/10.1007/978-3-030-64514-4_13
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