SHEAR BUCKLING BEHAVIOUR OF THE DOUBLE DELAMINATED SHIP DECK PLATES
Résumé
The work presented in this paper analyzes the influence of the imperfections, such as double delaminations, on the changes in the shear buckling behaviour of the ship deck plates made of composite materials. Thus, parametric analysis of the postbuckling behaviour of composite plates with double delaminations are treated. The orthotropic delamination model, describing the delaminating process, is applied. The damaged part of the structures and the undamaged part have been represented by well-known finite elements (layered shell elements). The influence of the position and the ellipse’s diameters ratio of the delaminated zone on the critical buckling force are investigated. The plates are made of E-glass polyester, having the dimensions: 320 mm x 320 mm and a thickness of 5.12 mm. The numerical analysis is done using COSMOS/M soft package.
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