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An investigation of the failure envelope of granular/discontinuous-columnar sea ice

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1016/0165-232X(84)90044-2
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Affiliation
  1. National Research Council of Canada
FormatText, Article
Subjectice; strain; compressive strength; compression tests; granular/ discontinuous columnar ice; confined compression tests; Beaufort Sea; loading rate
Abstract
The three-dimensional failure envelope for granular/ discontinuous-columnar sea ice has been investigated over a range of nominal strain rates from 9 X 10[-6]s[-1] to 4.4 X 10[-4]s[-1] by using confined compression tests. Both the applied load and side-confining load were measured. The tests were performed on samples cut from a solid block of ice in the Beaufort Sea which structurally was granular with some banding of discontinuous-columnar ice to a depth of 1.2 m. The results indicate the overall shape and size of the failure envelope of this ice, and show that although the shape is independent of loading rate, the size increases with loading rate. An analytical expression is derived which mathematically describes the failure envelope in three- dimensional space.
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  • Cold Regions Science and Technology 9, no. 1: 17–27.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1211
NRC numberNRCC 23525
NRC-IRC-149
NPARC number20378615
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Record identifier630d117e-4912-4c49-b8e6-2b9aab8bf95a
Record created2012-07-24
Record modified2024-03-22
Date modified: