Journal
PHYSICA D-NONLINEAR PHENOMENA
Volume 240, Issue 20, Pages 1674-1683Publisher
ELSEVIER
DOI: 10.1016/j.physd.2011.07.005
Keywords
Sea ice; Decohesive constitutive model; Material-point method
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Funding
- United States Department of Energy [DE-AC04-94AL85000]
- National Science Foundation [ARC-0621173]
- NNSA
- [ARC-1023667]
- Office of Polar Programs (OPP)
- Directorate For Geosciences [1023667] Funding Source: National Science Foundation
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This paper argues for a new constitutive model, an elastic-decohesive model for sea ice. The model is motivated by examining satellite observations of the Arctic processed to show ice deformation in the form of divergence, shear and vorticity. The model is implemented numerically in the material-point method and used to predict motion and deformation of sea ice by simulating a region of the Beaufort Sea. The model is able to capture the qualitative and statistical behavior of localized deformation seen in the observations. (C) 2011 Elsevier B.V. All rights reserved.
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