Mathematical modelling of icebreaking pattern based on the elastic wave theory

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TypeArticle
Conference10th International Symposium on Ice, 20-23 August 1990, Espoo, Finland
Subjecticebreaking; continuous mode; elastic wave; mathematical model
AbstractIn this paper, an ice-sheet/water system is used to study the icebreaking pattern. Theory of elastic-wave propagation is utilized to deal with the following problem: an icebreaker moves forward and impinges on the edge of an ice-sheet which floats on calm water. As a consequence, elastic waves are generated at that edge of the ice-sheet, and propagate in all directions. The icebreaking process takes place in the ice-sheet when the ice-sheet absorbs a considerable amount of energy from the impact. In the meantime, the water underneath the ice-sheet is disturbed by the ice-sheet motion, and partially reacts on the ice-sheet. Elastic-wave profiles are obtained for normal and shear stresses. Based on those results, the ship icebreaking resistance can be computed from the dynamic fracture point of view.
Publication date
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
IdentifierIR-1990-05
NRC number5837
NPARC number8895198
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Record identifiercafdc366-27bd-4c0f-9a7d-901ab386de4f
Record created2009-04-22
Record modified2016-05-09
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