THERMOELASTIC VIBRATION ANALYSIS OF LAMINATED DOUBLY CURVED SHALLOW PANELS USING NON-LINEAR FEM

Non-linear vibration behavior of the laminated composite curved panel of different geometries (cylindrical, elliptical, hyperboloid, paraboloid and flat panel) under thermal environment is investigated in this article. A non-linear mathematical model is developed based on higher-order shear deformation theory by taking Green-Lagrange type of non-linear kinematics. The governing equation of the vibrated panel is obtained through Hamilton's principle and discretized using the non-linear finite element steps. The responses are obtained through direct iterative method and compared with those available in published literature. The effect of different parameters on the non-linear vibration behavior of the curved panel has been discussed in detail.