Author(s): L. W. Gold; S. L. Jones; T. D. Slade
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Keywords: No Keywords
Abstract: Measurements were made of the stress and strain induced in columnar-grain, type S2 ice by a uniaxial stress applied perpendicular to the long direction of the grains in a stiff testing machine. The formation of cracks was recorded concurrently with a video camera. The tests were carried out at -5C, -10C, -20C and -30C, at the nominal strain rates of 10-3,10-4 and 10-5 s-1, on rectangular specimens of average grain size 2.3 to 9.2 mm. It was found that the grain size and temperature dependence of the stress and the strain at the time of initiation of the first crack was similar to that observed by Kalifa et al (1991) for granular ice.
Year: 1992