Closed-loop controlled tensile strength testing method for multi-year sea ice

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ConferenceProc. 8th Int. Conf. on Offshore Mechanics and Arctic Engineering: 19 March 1989, The Hague, The Netherlands
Pages16; # of pages: 6
Subjectice; tensile strength; high arctic ice; ice floes; microstructure; specimen fabrication methods
AbstractA method has been developed for making a dogbone or dumbell- shaped specimen with a uniform gauge section made of any natural ice to be tested in tension. The specimen ends are made of built-up ice and the cross-sectional geometry is compatible with the grain structure of the ice. The gauge section is large enough to contain a sufficient number of grains to avoid any geometric effect and to mount the displacement gauge for conducting tests under closed-loop controlled constant strain rates. The application of the technique is illustrated by examples of test results on columnar-grained sea ice obtained from a multi-year floe in the High Arctic in the form of 300 mm diameter cores. The paper also describes methods of carrying out post-test microstructural analysis.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number30476
NPARC number20386386
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Record identifier0f438e18-52c0-4bad-9e3c-c3703dbd062e
Record created2012-07-25
Record modified2016-05-09
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