Transition Between Mechanical and Geometric Controls in Glacier Crevassing Processes
Hugo Rousseau,
Johan Gaume,
Lars Blatny
et al.
Abstract:Herein, fast fracture initiation in glacier ice is modeled using a Material Point Method and a simplified constitutive law describing tensile strain softening. Relying on a simple configuration where ice flows over a vertical step, crevasse patterns emerge and are consistent with previous observations reported in the literature. The model’s few parameters allows identification of a single dimensionless number controlling fracture spacing and depth. This scaling law delineates two regimes. In the first one, ice… Show more
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