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It is known that steel structures exhibit enhanced strength when they experience dynamic loads (e.g.
collisions) versus static loads (e.g. bearing loads). A model for this enhanced strength was created by
Cowper and Symonds in 1957, however it is currently only applicable to room temperatures. It is the
aim of this project to extend the applicability of this model to arctic temperatures so that the design of
ships and offshore structures intended for arctic use may take advantage of this inherent dynamic
strengthening. An additional immediate benefit is that this new data is directly compatible with
popular explicit finite element analysis software (e.g. ANSYS-AUTODYNE, NASTRAN, LS-DYNA),
as they have already incorporated the Cowper-Symonds model.
Claude Daley
BMT Fleet Technology Ltd
Computer science
Professional, scientific and technical services
Memorial University of Newfoundland
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