Application of Fracture Mechanics to Ice/Structure Interactions
Publication: Journal of Cold Regions Engineering
Volume 2, Issue 1
Abstract
The brittle nature of ice, particularly at high strain rates, suggests that fracture mechanics may be a suitable tool for modeling ice/structure interactions. However, tests on polycrystalline randomly oriented freshwater ice have shown that, at a strain rate of the limiting load on a sample may be that required to initiate a new crack even in precracked samples. Other tests on notched samples of columnar saline ice have shown fracture away from the notch. Given these results, the limitations of fracture mechanics in modeling ice/structure interactions is discussed in relation to the following topics: crack initiation versus crack propagation; crack tip zone size and notch‐toughening effects; microstructural effects; and geometrical description of ice fields. It is concluded that further basic understanding of the material behavior of ice is needed before fracture mechanics can be safely applied in the modeling of ice/structure interactions.
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Published In
Journal of Cold Regions Engineering
Volume 2 • Issue 1 • March 1988
Pages: 1 - 12
Copyright
Copyright © 1988 ASCE.
History
Published online: Mar 1, 1988
Published in print: Mar 1988
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