A New Exponential Plate Theory for Laminated Composites under Cylindrical Bending

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  • Park Jungsun
    School of Aerospace and Mechanical Engineering, Hankuk Aviation University
  • Lee Soo-Yong
    School of Aerospace and Mechanical Engineering, Hankuk Aviation University

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  • New Exponential Plate Theory for Laminated Composites under Cylindrical Bending

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This paper presents a new laminated plate theory for cylindrical bending of laminated plates. The new theory assumes that inplane displacements vary exponentially through plate thickness. The accuracy of the new theory is examined for symmetric/antisymmetric cross-ply, angle-ply and unsymmetric laminates under cylindrical bending. The numerical results show that the new theory provides displacements and stresses very accurately as compared to three-dimensional elasticity solutions. In particular, transverse shear stresses obtained from constitutive equations are predicted very accurately. The results are compared with those obtained from the first-order shear deformation plate theory and the classical laminated plate theory.

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