Large scale hull loading of freshwater and brackish ice

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Conference18th Canadian Congress of Applied Mechanics, June 3-7, 2001, St. John's, Newfoundland
Subjectice; ice strength; brackish ice; hull loads
AbstractThe International Northern Sea Route Project addressed the issue of large-scale, ship hull-ice loading, which would be encountered sailing along the Northern Sea Route. Previous work done on ship hull-ice loads has either been measurements with actual ships, small scale model basin tests, or controlled field tests. This project falls into the last category. Phase 1 of this project had been conducted on lake ice near Calgary [1] and had identified the need for further tests on sea ice, focusing on the effects of prior damage on strength, as well as control of rate. To fulfill this requirement, a series of tests in first-year sea ice was carried out at Tuktoyaktuk in the Canadian Arctic. The concept behind these Phase 2 tests was to simulate the impact of a ship hull with an ice cusp. A hydraulic actuator was used to press an indentor plate against the edge of an ice sheet. The objective was to generate loading over a large contact area, 0.3 m2 with a high aspect ratio; i.e., the ratio of the length to height of the contact patch was up to 8:1.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number5868
NPARC number8895712
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Record identifierd53d1e05-0460-4f7d-a106-c05a64d5d642
Record created2009-04-22
Record modified2016-05-09
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