Energy dissipation through melting in large scale indentation experiments on multi-year sea ice
Large scale indentation experiments have been performed in the multi-year sea ice at Hobson's Choice Ice Island. In situ temperature measurements at the ice/indentor interface during testing indicated that the temperature rose to 0°C, suggesting the presence of liquid. Thin section analysis of...
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1991
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ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:8896132 2023-05-15T14:22:19+02:00 Energy dissipation through melting in large scale indentation experiments on multi-year sea ice Gagnon, R. E. Sinha, N. K. 1991 text https://nrc-publications.canada.ca/eng/view/object/?id=28bb8111-947c-445b-a987-bd265435104f https://nrc-publications.canada.ca/fra/voir/objet/?id=28bb8111-947c-445b-a987-bd265435104f unknown 10th International Conference on Offshore Mechanics and Arctic Engineering, 23-28 June 1991, Stavanger, Norway., Publication date: 1991 report_number:IR-1991-07 article 1991 ftnrccanada 2021-09-01T06:18:19Z Large scale indentation experiments have been performed in the multi-year sea ice at Hobson's Choice Ice Island. In situ temperature measurements at the ice/indentor interface during testing indicated that the temperature rose to 0°C, suggesting the presence of liquid. Thin section analysis of ice that had bonded to an indentor after a test showed very small diameter grains (-.3 mm) wiith rust particulate inclusions, from the indentor face, at grain boundaries. This was indicative of the presence and rapid freezing of lquid. Video records of the ice/indentor interface during indentation and records of displacement, load and temperature were consistent with a process of pressure melting and heat generation by flow of the melt. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Arctic Sea ice National Research Council Canada: NRC Publications Archive |
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Open Polar |
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National Research Council Canada: NRC Publications Archive |
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ftnrccanada |
language |
unknown |
description |
Large scale indentation experiments have been performed in the multi-year sea ice at Hobson's Choice Ice Island. In situ temperature measurements at the ice/indentor interface during testing indicated that the temperature rose to 0°C, suggesting the presence of liquid. Thin section analysis of ice that had bonded to an indentor after a test showed very small diameter grains (-.3 mm) wiith rust particulate inclusions, from the indentor face, at grain boundaries. This was indicative of the presence and rapid freezing of lquid. Video records of the ice/indentor interface during indentation and records of displacement, load and temperature were consistent with a process of pressure melting and heat generation by flow of the melt. Peer reviewed: Yes NRC publication: Yes |
format |
Article in Journal/Newspaper |
author |
Gagnon, R. E. Sinha, N. K. |
spellingShingle |
Gagnon, R. E. Sinha, N. K. Energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
author_facet |
Gagnon, R. E. Sinha, N. K. |
author_sort |
Gagnon, R. E. |
title |
Energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
title_short |
Energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
title_full |
Energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
title_fullStr |
Energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
title_full_unstemmed |
Energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
title_sort |
energy dissipation through melting in large scale indentation experiments on multi-year sea ice |
publishDate |
1991 |
url |
https://nrc-publications.canada.ca/eng/view/object/?id=28bb8111-947c-445b-a987-bd265435104f https://nrc-publications.canada.ca/fra/voir/objet/?id=28bb8111-947c-445b-a987-bd265435104f |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
10th International Conference on Offshore Mechanics and Arctic Engineering, 23-28 June 1991, Stavanger, Norway., Publication date: 1991 report_number:IR-1991-07 |
_version_ |
1766294946102378496 |