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Confined compression tests: outlining the failure envelope of columnar sea ice

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
Subjectice; sea water; compression tests; applied load; side confining load; loading rate effects; temperature effects; brine volume effects; air porosity effects; modified n-type yield function; eau de mer; essai de compression
Abstract
A series of confined compression tests has been performed on columnar sea ice. Both the applied load and side confining load were measured. These are used to outline the full 3- dimensional failure envelope of the ice. The results are discussed in terms of loading rate effects, temperature, brine volume and air porosity. A strength index is introduced which correlates the present results in terms of these parameters. This leads to an empirical relationship which gives the functional dependence of the uni-axial compressive strength in terms of strain rate, loading direction, salinity, temperature and ice density. A mathematical description of the failure envelope is presented using a modified n-type yield function.
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In
  • Cold Regions Science and Technology 12, no. 1 (February 1986): 13–28.
LanguageEnglish
Peer reviewedYes
IdentifierIRC-P-1362
NRC numberNRCC 25581
NRC-IRC-346
NPARC number20375651
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Record identifiereae7ec88-d672-459a-ac03-12d2fc2ed58e
Record created2012-07-23
Record modified2020-06-06
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