The effects of anisotropy and microcracks on the fracture toughness (KIC) of freshwater ice

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ConferenceProc. 5th Int. Offshore Mechanics and Arctic Engineering Symp. (OMAE): 13 April 1986, Tokyo, Japan
Pages34148; # of pages: 294
Subjectice; anistropy; fracture strength; microfissures; crackings (breaking); plane strain critical stress intensity factor; columnar freshwater ice; loading rate; loading direction; crack propagation; résistance à la fracture; microfissuration; fissuration; glace (gel)
AbstractA series of tests have been performed to measure the plane strain critical stress intensity factor (KIC) for columnar freshwater ice as a function of loading rate and loading direction. The results indicate that KIC decreases with increasing loading rate and grain size, and that for comparable conditions, KIC is higher for crack propagation extending along the plane of the ice cover as opposed to crack propagation through the thickness of an ice cover. A separate series of tests indicated that increasing microcrack density resulted in a decrease in the apparent fracture toughness of ice.
Publication date
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number26645
NPARC number20338299
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Record identifier14f89535-cee2-4702-934c-0c7a873180d7
Record created2012-07-19
Record modified2016-05-09
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