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A continuum viscous-elastic-brittle, finite element DG model for the fracture and drift of sea ice

Véronique Dansereau 1, 2 Jérôme Weiss 1 Pierre Saramito 3
2 GéoMécanique
3SR - Laboratoire sols, solides, structures - risques [Grenoble]
3 EDP - Equations aux Dérivées Partielles
LJK - Laboratoire Jean Kuntzmann
Abstract : The thin ice covering the polar oceans is a complex geomaterial that is constantly breaking and moving under the action of the wind and ocean currents and that experiences transitions between a brittle solid and a granular fluid state. We have developed a simple continuum mechanical framework in the view of representing accurately its dynamical behavior in regional and global sea ice or coupled climate models. It combines the concepts of elastic memory, progressive damage and viscous-like relaxation of stresses. Here, we present this framework and its ongoing numerical development based on Finite Element, Discontinuous Galerkin methods.
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https://hal.archives-ouvertes.fr/hal-03387938
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Submitted on : Wednesday, October 20, 2021 - 10:11:16 AM
Last modification on : Friday, November 26, 2021 - 9:14:01 AM

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Véronique Dansereau, Jérôme Weiss, Pierre Saramito. A continuum viscous-elastic-brittle, finite element DG model for the fracture and drift of sea ice. Challenges and Innovation in Geomechanics, 125, Springer, 2021, Lecture Notes in Civil Engineering, ⟨10.1007/978-3-030-64514-4_8⟩. ⟨hal-03387938⟩

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