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This paper presents a static flexure of laminated composite plates by using a novel first shear deformation theory (FSDT). This theory contains only four unknowns, with is even less than the classical FSDT and has strong similarities with the classical plate theory in many aspects such as equations of motion, boundary conditions, and stress resultant expressions. The governing equations are derived by employing the Hamilton's principles and solved via Navier's solution. Analytical solutions of simply supported antisymmetric cross-ply and angle-ply laminates are obtained and the results are compared with the exact 3D [1], classical FSDT [2] and the Higher- order shear deformation theory (HSDT) with cubic variations for in-plane displacements developed by Reddy [3] and other solutions available in the literature. Comparison studies show that this novel first-order shear deformation theory can achieve the same accuracy of the existing first-order shear deformation theory which has more number of unknowns.

International Symposium on Light Alloys and Composite Materials
UHAKS

Kada DRAICHE Lazreg Hadji Abdelouahed TOUNSI El Abbas ADDA BEDIA