Yield Conditions of an Assembly of Discrete Ice Floes

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TypeArticle
Proceedings titleProceedings of 5th International Offshore and Polar Engineering Conference (ISOPE)
ConferenceJune 11-16, 1995
ISSN1-880653-18-4
Pages330335; # of pages: 6
AbstractThe deformation of an assembly of ice floes is examined using a discrete numerical model. The simulations keep track of the movements, velocities and contact forces of each floe in order to examine the short term rheology of ice covers. The behaviour of intact ice covers is examined by introducing tensile forces between discrete floes. Tests were done using constant confining pressures and a constant displacement rate. Stress-strain curves were obtained for a range of confining pressures. They showed that strain softening occurs at low confining pressures. They showed that strain softening occurs at low confining pressures. The yield envelopes follow linear Mohr-Coulomb criteria. The effect of the friction coefficient between ice floes and the tensile strength are examined. The results also show that ice concentration dependence on the mean pressure follows a logarithmic relationship.
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AffiliationNational Research Council Canada; NRC Canadian Hydraulics Centre
Peer reviewedNo
NPARC number12341006
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Record identifier24692069-7962-4dc6-9e11-7867ae194016
Record created2009-09-11
Record modified2016-05-09
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