Three-Dimensional Analysis of an Artificial Island

by E. Evgin, Natl Research Council of Canada, Div, of Building Research, Ottawa, Ont, Canada,
N. R. Morgenstern, Natl Research Council of Canada, Div, of Building Research, Ottawa, Ont, Canada,



Document Type: Proceeding Paper

Part of: Civil Engineering in the Arctic Offshore

Abstract: A nonlinear, finite element analysis has been carried out to investigate the influence of three-dimensional loading and geometry on deformation and failure of an artificial island. The results of plane-strain and three-dimensional computations are compared. Calculations indicate that plane-strain analysis does not always yield results on the safe side. Depending on the loading configuration, a three-dimensional analysis can predict larger deformations and smaller load-carrying capacity. When the ice load on an artificial island increases gradually, the principal stress axes rotate; the paths to failure are significantly different in plane-strain and three-dimensional analyses.

Subject Headings: Three-dimensional analysis | Islands | Failure analysis | Finite element method | Ice loads | Failure loads | Stress analysis | Deformation (mechanics) | Arctic

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