Using Rayleigh- Ritz Method and Finite- layers Method the free vibrations ofangle- ply thick laminates of bimodulus composite materrials with simple supported boundaryconditions are inverstigated.

The spline finite element method for the analysis of the dynamic response of the antisymmetric angle-ply laminated plate;

Based on Kirchhoff's classical theory and by the spline finite element method, three independent displacements are interpolated into the antisymmetric angle-ply laminated plate by the spline base of the cubic spline B function, and the stiffness array and quality array of the composite material laminated plate are derived.

In this paper the critical load of delamination buckling for a symmetric cross-ply laminate acted on by uniaxial load is investigated.