Author(s): David M. Cole

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Abstract: This paper focuses on recent theoretical and experimental developments in laboratory studies of ice physics and micromechanics. Topics of interest include progress in the observation and interpretation of dislocation-based processes and their relationship to mechanical be­havior, electrical effects, microcrack nucleation, anelasticity, internal friction, creep and pres­sure effects. Recent experimental developments are discussed and their impact on current theories are evaluated. Relevant contributions include crack nucleation studies, techniques for reversed direct-stress testing, fatigue crack growth studies and the direct observation of dislocations. Research findings are assessed in terms of the insight they provide regarding the physical processes that underlie mechanical behavior. Areas where recent findings are at odds with es­tablished lines of thought receive particular attention.

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Year: 1992