NONLINEAR TRANSIENT ISOGEOMETRIC ANALYSIS OF LAMINATED COMPOSITE PLATES BASED ON HIGHER ORDER PLATE THEORY

Geometrically nonlinear transient analysis of laminated composite plates is studied using isogeometric analysis (IGA). Herein, higher-order shear deformation theory (HSDT) is applied in displacement field to ensure by itself the realistic shear strain energy part without shear correction factors. IGA utilizing higher-order B-splines basis functions enables to satisfy easily the stringent continuity requirement of the HSDT model without any additional variables. The nonlinearity of the plates based on the von-Karman strain assumptions is solved by the Newmark time integration associated with the Picard method. Two numerical examples of square composite plates are provided to demonstrate the effectiveness of the proposed method.

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