The thin ice covering the polar oceans is a complex geomaterial that is constantly breaking and moving under the action of the winds and ocean currents. Doing so, it also experiences rheological transitions between a brittle solid and a granular fluid regime. A simple continuum mechanical framework was recently developed in the view of representing the dynamics of sea ice in regional and global stand-alone sea ice or coupled climate models. It combines the concepts of elastic memory, progressive damage and viscous-like relaxation of stresses. In this talk, Véronique Dansereau will present this framework and its ongoing numerical development based on Finite Element, Discontinuous Galerkin methods.
You can watch the recording of the presentation here : https://www.youtube.com/watch?v=R09Z8VJlpQc