A rate and state friction law for saline ice
Sea ice friction models are necessary to predict the nature of interactions between sea ice floes. These interactions are of interest on a range of scales, for example, to predict loads on engineering structures in icy waters or to understand the basin-scale motion of sea ice. Many models use Amonto...
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American Geophysical Union
2011
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Online Access: | https://centaur.reading.ac.uk/34651/ https://centaur.reading.ac.uk/34651/1/jgrc11768.pdf https://doi.org/10.1029/2010JC006334 |
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ftunivreading:oai:centaur.reading.ac.uk:34651 2024-09-09T20:07:09+00:00 A rate and state friction law for saline ice Lishman, B. Sammonds, P. R. Feltham, D. L. 2011 text https://centaur.reading.ac.uk/34651/ https://centaur.reading.ac.uk/34651/1/jgrc11768.pdf https://doi.org/10.1029/2010JC006334 en eng American Geophysical Union https://centaur.reading.ac.uk/34651/1/jgrc11768.pdf Lishman, B., Sammonds, P. R. and Feltham, D. L. <https://centaur.reading.ac.uk/view/creators/90004991.html> orcid:0000-0003-2289-014X (2011) A rate and state friction law for saline ice. Journal of Geophysical Research, 116. C05011. ISSN 0148-0227 doi: https://doi.org/10.1029/2010JC006334 <https://doi.org/10.1029/2010JC006334> Article PeerReviewed 2011 ftunivreading https://doi.org/10.1029/2010JC006334 2024-06-25T14:55:27Z Sea ice friction models are necessary to predict the nature of interactions between sea ice floes. These interactions are of interest on a range of scales, for example, to predict loads on engineering structures in icy waters or to understand the basin-scale motion of sea ice. Many models use Amonton's friction law due to its simplicity. More advanced models allow for hydrodynamic lubrication and refreezing of asperities; however, modeling these processes leads to greatly increased complexity. In this paper we propose, by analogy with rock physics, that a rate- and state-dependent friction law allows us to incorporate memory (and thus the effects of lubrication and bonding) into ice friction models without a great increase in complexity. We support this proposal with experimental data on both the laboratory (∼0.1 m) and ice tank (∼1 m) scale. These experiments show that the effects of static contact under normal load can be incorporated into a friction model. We find the parameters for a first-order rate and state model to be A = 0.310, B = 0.382, and μ0 = 0.872. Such a model then allows us to make predictions about the nature of memory effects in moving ice-ice contacts. Article in Journal/Newspaper Sea ice CentAUR: Central Archive at the University of Reading Journal of Geophysical Research 116 C5 |
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Open Polar |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
language |
English |
description |
Sea ice friction models are necessary to predict the nature of interactions between sea ice floes. These interactions are of interest on a range of scales, for example, to predict loads on engineering structures in icy waters or to understand the basin-scale motion of sea ice. Many models use Amonton's friction law due to its simplicity. More advanced models allow for hydrodynamic lubrication and refreezing of asperities; however, modeling these processes leads to greatly increased complexity. In this paper we propose, by analogy with rock physics, that a rate- and state-dependent friction law allows us to incorporate memory (and thus the effects of lubrication and bonding) into ice friction models without a great increase in complexity. We support this proposal with experimental data on both the laboratory (∼0.1 m) and ice tank (∼1 m) scale. These experiments show that the effects of static contact under normal load can be incorporated into a friction model. We find the parameters for a first-order rate and state model to be A = 0.310, B = 0.382, and μ0 = 0.872. Such a model then allows us to make predictions about the nature of memory effects in moving ice-ice contacts. |
format |
Article in Journal/Newspaper |
author |
Lishman, B. Sammonds, P. R. Feltham, D. L. |
spellingShingle |
Lishman, B. Sammonds, P. R. Feltham, D. L. A rate and state friction law for saline ice |
author_facet |
Lishman, B. Sammonds, P. R. Feltham, D. L. |
author_sort |
Lishman, B. |
title |
A rate and state friction law for saline ice |
title_short |
A rate and state friction law for saline ice |
title_full |
A rate and state friction law for saline ice |
title_fullStr |
A rate and state friction law for saline ice |
title_full_unstemmed |
A rate and state friction law for saline ice |
title_sort |
rate and state friction law for saline ice |
publisher |
American Geophysical Union |
publishDate |
2011 |
url |
https://centaur.reading.ac.uk/34651/ https://centaur.reading.ac.uk/34651/1/jgrc11768.pdf https://doi.org/10.1029/2010JC006334 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
https://centaur.reading.ac.uk/34651/1/jgrc11768.pdf Lishman, B., Sammonds, P. R. and Feltham, D. L. <https://centaur.reading.ac.uk/view/creators/90004991.html> orcid:0000-0003-2289-014X (2011) A rate and state friction law for saline ice. Journal of Geophysical Research, 116. C05011. ISSN 0148-0227 doi: https://doi.org/10.1029/2010JC006334 <https://doi.org/10.1029/2010JC006334> |
op_doi |
https://doi.org/10.1029/2010JC006334 |
container_title |
Journal of Geophysical Research |
container_volume |
116 |
container_issue |
C5 |
_version_ |
1809939879608451072 |