Stresses in first-year ice pressure ridges
First-year sea ice pressure ridges are modelled as two-dimensional wedges of a Mohr-Coulomb material and the passive stress distribution is obtained using a similarity solution and approximate polynomial forms of the dependent variable. Analysis gives the horizontal forces in ice covers associated w...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
1984
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| Subjects: | |
| Online Access: | https://nrc-publications.canada.ca/eng/view/ft/?id=b2257e68-ae69-48e1-976a-5b04f7bb97bc https://nrc-publications.canada.ca/eng/view/object/?id=b2257e68-ae69-48e1-976a-5b04f7bb97bc https://nrc-publications.canada.ca/fra/voir/objet/?id=b2257e68-ae69-48e1-976a-5b04f7bb97bc |
| Summary: | First-year sea ice pressure ridges are modelled as two-dimensional wedges of a Mohr-Coulomb material and the passive stress distribution is obtained using a similarity solution and approximate polynomial forms of the dependent variable. Analysis gives the horizontal forces in ice covers associated with formation of floating pressure ridges and some cases of rubble pile-up against shores. Les crêtes de pression de la glace de mer de première année sont modélisées sous forme de prismes bidimensionnels se comportant selon la loi de Mohr-Coulomb. La répartition des contraintes passives est obtenue en utilisant une solution similaire et des polynomes approximatifs de la variable dépendante. Ces analyses permettent de calculer les forces horizontales dans les couvertures de glace liées à la formation de crêtes de pression flottantes et dans certains cas, aux amas de glace le long des côtes. Peer reviewed: Yes NRC publication: Yes |
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