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

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TypeArticle
Journal titleCold Regions Science and Technology
ISSN0165-232X
Volume12
Issue1
Pages1328; # of pages: 16
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
AbstractA 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.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-1362
NRC number25581
346
NPARC number20375651
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Record identifiereae7ec88-d672-459a-ac03-12d2fc2ed58e
Record created2012-07-23
Record modified2016-05-09
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