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Decohesion with refreezing
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DOI：10.1016/j.coldregions.2011.08.002.png)
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Abstract
En 中文
In a previous paper, an elastic-decohesive model was developed for sea ice. Unlike previous models, orientation and displacement discontinuity associated with lead opening are specifically predicted. However, over the course of a season a specific lead may open and close several times with significant implications related to ice production and heat flux. The focus of this paper is to indicate, in a generic manner, how the formation of new ice by freezing within a lead and the recovery of tensile strength by the freezing of ridges can be accommodated easily within the decohesive structure. A sample simulation is provided to show the implications of these additional terms on ice production over several cycles of lead opening and closing. (C) 2011 Elsevier B.V. All rights reserved.
Keywords:
Decohesive constitutive model
Sea ice
Fracture
Refreezing
Gap closure
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