Abstract
The mechanical behaviour of polycrystalline ice depends on the strain rate and the confinement level, the temperature, and its texture (shape, size and crystallographic orientation of the grains). Under uniaxial compressive loading, at low strain rates (less than 10−6 s−1 at −10°C) ice exhibits a ductile behaviour; at higher strain rates, the material experiences distributed microcracking (damage) and a peak stress is observed on the stress-strain curves; at high strain rates (10−2 s−1) brittle compressive failure occurs.KeywordsAcoustic EmissionHigh Strain RateCreep TestMICROCRACK NucleationInternal Stress FieldThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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