Non-linear vibration of eccentrically stiffened laminated composite shells

Authors

  • Dao Huy Bich Vietnam National University, Hanoi
  • Vu Do Long Vietnam National University, Hanoi

DOI:

https://doi.org/10.15625/0866-7136/30/2/5619

Abstract

The present paper deals with a non-linear vibration of eccentrically stiffened laminated composite doubly curved shallow shells. The calculations of internal forces and displacements of the shell are based upon the thin shell theory considering the geometrical non-linearity and the Lekhnitsky's smeared stiffeners technique. From the deformation compatibility equation and the motion equation a system of partial differential equations for stress function and deflection of shell is obtained. The Bubnov-Galerkin's method and iterative procedure in conjunction with Newmark constant acceleration scheme are used for dynamical analysis of shells to give the frequency-amplitude relation of free nonlinear vibration and non-linear transient responses. Numerical results show the influence of boundary conditions and Gauss curvature on the non-linear vibration of shells.

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Published

01-07-2008

How to Cite

Bich, D. H., & Long, V. D. (2008). Non-linear vibration of eccentrically stiffened laminated composite shells. Vietnam Journal of Mechanics, 30(2), 67–70. https://doi.org/10.15625/0866-7136/30/2/5619

Issue

Section

Research Paper

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