Conceptual thoughts on continuum damage mechanics for shallow ice shelves

We consider a theory for shallow ice shelves that includes an isotropic damage variable. A zeroth-order shallow-shelf approximation allows a simple yet consistent treatment of both ice dynamics and damage evolution. We find that the damage variable (like temperature) has, in general, to vary with de...

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Bibliographic Details
Main Authors: Keller, Arne, Hutter, Kolumban
Format: Article in Journal/Newspaper
Language:English
Published: International Glaciological Society 2014
Subjects:
Antarctic glaciology
Calving
Ice-shelf break-up
Antarctic
Antarc*
Ice Shelf
Ice Shelves
Journal of Glaciology
Online Access:https://hdl.handle.net/20.500.11850/91435
https://doi.org/10.3929/ethz-b-000091435
Description
Summary:We consider a theory for shallow ice shelves that includes an isotropic damage variable. A zeroth-order shallow-shelf approximation allows a simple yet consistent treatment of both ice dynamics and damage evolution. We find that the damage variable (like temperature) has, in general, to vary with depth; a purely two-dimensional membrane theory can only be considered a rough approximation for isothermal ice shelves. ISSN:0022-1430 ISSN:1727-5652

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