Semi-analytical study of free vibration of composite shells of revolution based on the Reissner-Mindlin assumption

A semi-analytical procedure is presented for predicting free vibratmn characteristics of composite shells of revolution The approach considers both transverse shear deformation and the coupling between symmetnc and unsymmetnc modes in laminated composite shells. Numerical examples are gwen for the free vibrations of thin cylindrical laminated composite shells and moderately thick symmetric cross-ply and antlsymmetnc angle-ply laminated composite conical shells The effects of shear deformation, circumferential wave number, thickness to radius ratio, ply angle and stacking sequence on natural frequency are discussed