Fracture Mechanics Models of Ice-Structure Interaction
Fracture mechanics models can explain some observed features of ice loading, among them anomalous “size effects” and the low forces seen in full-scale interactions (such as the Hans Island measurements, and some records of ice forces on gravel islands). A difficulty is that fracture mechanics can be made to explain too much, indeed almost anything, by appropriate hypothesis about initial defects and the development of additional defects by repeated fracture.
This paper attempts a critical assessment of the application of fracture mechanics, and identifies predictions which can be tested against observations in the field.
KeywordsFracture Mechanic Stress Intensity Factor Contact Pressure Fragment Size Linear Elastic Fracture Mechanics
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