Sea ice friction and Arctic sea ice dynamics
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 resul...
| Main Authors: | , , , |
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| Format: | Conference Object |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | https://researchportal.port.ac.uk/portal/en/publications/sea-ice-friction-and-arctic-sea-ice-dynamics(0b450bb7-d4fe-4f8d-8fc7-19c1c50617fe).html https://researchportal.port.ac.uk/ws/files/3002645/Lishman_Sammonds_Feltham_Wilchinksy_2010_Hydralab_III_JUM_friction_results.pdf |
| Summary: | 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. |
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