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TitlePreliminary results from fatigue tests on in situ sea ice beams
Publication TypeJournal Article
Year of Publication1996
AuthorsHaskell, T.G., Robinson W.H., and Langhorne P.J.
JournalCold Regions Science and Technology
Pagination167 - 176
Date Published1996
ISSN0165232X (ISSN)
KeywordsEndurance limit, Failure (mechanical), Failure analysis, Fatigue of materials, Fatigue testing, Sea ice, Standard fatigue curve, Stress amplitude, Stresses
AbstractMeasurements of the fatigue characteristics of sea ice will give an indication of its possible failure mechanisms under repeated loading such as occur with wave action and the operations of vehicles and aircraft. In this paper we present the results of a series of fatigue experiments carried out in the McMurdo Sound, Antarctica during the summer of 1992. The results presented here are in the form of a standard fatigue curve (with zero mean stress), that is "stress amplitude" versus "number of cycles to failure", commonly known as an S-N curve. The "endurance limit", that is the stress below which the sea-ice can withstand an unlimited number of cycles, is for sea ice in situ, approximately half the failure stress.

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