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Title: Ice strength as a function of hydrostatic pressure and temperature
Authors: Institute of Geomechanics and Hydrostructures (Moscow, Russia)
Fish, Anatoly M.
Zaretsky, Yuri K.
Keywords: Freshwater ice
Temperature model
Ice melting pressure
Triaxial compression tests
Ice mechanics
Hydrostatic pressure
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: CRREL report ; 97-6.
Description: CRREL Report
Abstract: A temperature model has been developed that describes the ice strength in a multiaxial stress state over a wide spectrum of negative temperatures. The model takes into account the anomalous behavior of ice under high hydrostatic pressure, when its strength reaches a maximum, and then gradually decreases with the pressure increase. It has been shown that strength of ice under high hydrostatic pressure is described by a parabolic yield criterion with only three fundamental parameters, ice cohesion, internal friction angle, and ice melting pressure, which all have a definite physical meaning and are functions of temperature. The model has been verified using test data on the strength of iceberg ice and laboratory-made polycrystalline freshwater ice under triaxial compression at strain rates between 10^–3 and 10^–5 s^–1 over the temperature range between –1° and –40°C.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:CRREL Report

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