Sea ice friction and Arctic sea ice dynamics

Ben Lishman, Peter Sammonds, Danny Feltham, Alex Wilchinsky

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    Abstract

    A series of double-shear experiments were undertaken in the Environmental Test Basin at the Hamburgische Shiffbau-Versuchsanstalt (HSVA) in Hamburg. The aim of these experiments was to improve understanding of transient behaviour in sea ice friction. To this end we have fitted our experimental results to a rate- and state- dependent model of friction, which allows us to incorporate non-steady-state behaviour into a relatively simple (three parameter) friction law. In a further series of experiments we investigated the nature of granular flows in sea ice: here we are studying not just two parallel frictional contacts, but an anisotropic array. We have compared the ice tank results to smaller-scale laboratory results and modelling to give insights into applicability to engineering- and basin-scale problems.
    Original languageEnglish
    Publication statusPublished - Feb 2010
    EventHydralab III Joint User Meeting - Hannover, Germany
    Duration: 11 Feb 201012 Feb 2010

    Conference

    ConferenceHydralab III Joint User Meeting
    Country/TerritoryGermany
    CityHannover
    Period11/02/1012/02/10

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