Compressive strength of iceberg ice

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Journal titleCanadian Journal of Physics
Pages191200; # of pages: 10
AbstractThe uniaxial compressive strength of iceberg ice was determined over a wide range of strain rates from 10?8 to 10+1 s?1 at ?10°C. It was found that for strain rates less than 10?4 s?1, strength increased in a power-law manner with strain rate. Above 10?4 s?1, the strength was essentially constant at 4 MPa, dropping slightly between 10?3 and 10?1 s?1, before rising again to a value of about 10 MPa at 10+1 s?1. Thin sections of the ice revealed a small grain size of about 3.5 mm and elongated air bubbles with a ratio of length to width of about 10. In the practical strain-rate range of interest, the maximum failure stress observed was 4.8 MPa.
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AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedYes
NRC number5985
NPARC number8895456
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Record identifier5a309565-4f44-4467-b28a-10c09aae41e8
Record created2009-04-22
Record modified2016-05-09
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