Numerical homogenization method in the modeling of gas hydrate bearing sediments

Axelle Alavoine, Patrick Dangla, Jean-Michel Pereira, I. Tomac, J.S. McCartney
2020 E3S Web of Conferences  
The study of the mechanical behavior of gas hydrate bearing soils represents a major interest. The hydrate inclusions in sediments change their microstructure and their mechanical properties with it. We developed a numerical homogenization code in order to simulate the macro-mechanical response of a periodic unit-cell using local elastoplastic laws and complex geometries to define the microstructural components of the material. We applied it to a real image of fine-grained sediments containing
more » ... diments containing gas hydrate veins. This technique allowed us to study the effect of an elastoplastic soil matrix and of different volume fractions of gas hydrates with complex shapes on the overall response of the material.
doi:10.1051/e3sconf/202020511002 fatcat:khioyrvnijdqrhvt3qiquzfbky