Author(s): Sune Lindgren
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Keywords: No Keywords
Abstract: Single-axis tests with 7x7x20 cm ice prisms were carried out. The relationship between pressure, deformation and time is used to determine the elasticity and viscosity of the ice. Double-axis tests, at temperature increase and with restricted expansion on an ice sample 80 cm in diameter and 7 cm thick have been carried out. The relationship between the pressure and speed of deformation is used to determine the viscosity of the ice. The dependence of the moduli of deformation on temperature, pressure, period of load and size of crystals is studied and approximate formulas are given for calculation. An example is given to show methods of calculating ice pressure at a given air temperature from the moduli of deformation obtained.
Year: 1970