Author(s): Geir Horrigmoe; Mikael Nystrom
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Abstract: The present paper deals with the application of the finite element discretization technique to the analysis of floating sea ice plates. A detailed derivation of a quadrilateral plate bending element with 12 degrees of freedom is presented. The element is based on the Reissner-Mindlin theory for plate bending and includes the effect of transverse shear deformation. Particular attention is given to transverse anisotropic material properties. It is demonstrated that this effect can be easily incorporated using numerical integration through the plate thickness. The accuracy of the present finite element formulation is demonstrated by numerical exanples where the finite element results are compared with analytical solutions and data from in situ experiments.
Year: 1988