A failure envelope for saline ice in the brittle regime

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Conference17th International Symposium on Okhotsk Sea and Sea Ice, February 24-28, 2002, Mombetsu, Japan
Subjectice failure criterion; ice failure criterion; failure envelope; saline ice; sea ice; fresh water ice; iceberg ice; ice strength; multi-surface failure theory
AbstractGratz and Schulson (1994) and Gratz (1996) published the results of a large set of true-triaxial (3-D) strength experiments using Laboratory Grown Saline Ice (LGSI). In this paper, their results were used to develop a 3-D failure criterion "failure envelope" for saline ice. The latter was formulated on the basis of the multi-surface failure theory using the same set of elliptical equations as those used for fresh water isotropic ice and iceberg ice (previously, developed by Derradji-Aouat, 2000). The comparisons between the predicted and measured strength values demonstrate that the multi-surface formulation is appropriate to model the 3-D failure of saline ice. A global analysis reveals that there may exist a unified failure criterion for all three types of ice (freshwater isotropic ice, iceberg ice, and saline ice). If the existence of such a general failure envelope is demonstrated, the present failure envelope becomes all inclusive failure formulation "a universal failure envelope for all types of ice".
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number5158
NPARC number8895741
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Record identifier79f84587-6ae6-495f-82d2-cd1157918b0c
Record created2009-04-22
Record modified2016-05-09
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