Flexural strength and fracture toughness of sea ice

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TypeArticle
Journal titleCold Regions Science and Technology
ISSN0165-232X
Volume8
Issue1
Pages3541; # of pages: 7
Subjectice; flexural strength; fracture strength; cold regions; tarsiut island, beaufort sea; midwinter ice; grain structure determination; salinity; ice density; small beam flexural strength; resistance a la flexion; resistance a la fracture; zone froid
AbstractA series of mid-winter experiments were carried out on the ice in the rubble field around Tarsiut Island in the Beaufort Sea. The tests included grain structure determinations, salinity and density of the ice, small beam flexural strength and fracture toughness. Typical values for flexural strength and fracture toughness were 0.6 - 1.0 MPa and 100 - 140 kPa m[1/2] respectively. Both properties were dependent on brine volume and depth in the ice sheet. In comparing these results with identical tests on fine- grained freshwater ice it was found that for comparable loading conditions, the strength of the sea ice was significantly lower than the strength of the freshwater ice, whereas the fracture toughness of the sea ice was higher than the fracture toughness of the freshwater ice.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-P-1146
NRC number22788
564
NPARC number20375546
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Record identifierf7885656-1323-4fed-ac88-d88c010a7bd4
Record created2012-07-23
Record modified2016-05-09
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