VIBRATIONS AND BUCKLING OF CROSS-PLY NONSYMMETRIC LAMINATED COMPOSITEBEAMS

The exact element method was applied to calculate the natural frequenc ies, the buckling loads, and the influence of the axial load on the na tural frequencies and mode shapes of nonsymmetric laminated composite beams. The theoretical model is using a first-order shear deformation theory and includes the effects of rotary inertia, shear deformation, and coupling between the longitudinal and transverse displacements, A parametric study was performed to investigate the influence of boundar y conditions, materials and layup sequence on the buckling loads and n atural frequencies of rectangular, cross-ply laminated composite beams .