NONLINEAR VIBRATIONS OF HEATED ANTISYMMETRIC ANGLE-PLY LAMINATED PLATES

Large amplitude vibrations, buckling and post-buckling analysis of heated angle-ply laminated plates have been considered using the parabolic shear deformation theory. Strains due to initial imperfections have also been retained using the von Karman type large deflection model. Numerical results are obtained by using the single mode approach to simply-supported plates, thus reducing five governing equations to a single nonlinear time differential equation involving quadratic and cubic nonlinearities. The effects of initial imperfections and the temperature loading on the response characteristics of the plate have been studied. Numerical results for isotropic and anti-symmetric angle-ply plates have been presented and discussed.