We discuss the application of DEM to two major issues in Geomechanics: failure description and stresses in partially saturated granular materials. As for failure description, a significant theoretical complexity arises from the non-associatedness of geomaterials and DEM has been instrumental in the understanding of failure before the plastic limit condition (the Mohr-Coulomb surface). As for stresses in partially saturated granular materials, a variety of microscopic stresses exist in the medium with contact forces, fluid pressures, and surface tension forces. However, the DEM framework handles this complexity in a consistent manner with respect to analytical homogenization. DEM provides thus a powerful tool to investigate the tensorial nature of capillary stresses due to the fluid mixture in partially saturated granular material.
CITATION STYLE
Darve, F., Duriez, J., & Wan, R. (2017). DEM modelling in geomechanics: Some recent breakthroughs. In Springer Proceedings in Physics (Vol. 188, pp. 3–12). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-981-10-1926-5_1
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