A Refined Shear Deformation Theory for Laminated Anisotropic Plates,
VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIENCE AND MECHANICS
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An improved plate theory that accounts for the transverse shear deformation is presented. The theory is based on an assumed displacement field in which the inplane displacements are expanded in terms of the thickness coordinate up to the cubic term and the transverse deflection is assumed to be independent of the thickness coordinate. The governing differential equations of the theory are derived from the virtual work principle. The theory eliminates the need for shear correction factors because the transverse shear stresses are represented parabolically. A comparison of the present numerical results for bending with the exact solutions of the three-dimensional elasticity theory shows that the present theory is more accurate than the first order shear deformation theory.