In the present paper, free vibration analysis of angle-ply laminated composite annular and circular plates is performed by numerical methods. First-order shear deformation plate theory is used for kinematic relations. The related governing equations of motion are discretized via differential quadrature and discrete singular convolution methods. Frequency values are obtained for different lamina scheme, thickness-to-radius ratio, and mode numbers. The advantages and accuracy of these two methods are also tested in detail.
机构:
Int Islamic Univ Malaysia, Dept Mech Engn, Fac Engn, Kuala Lumpur 53100, MalaysiaInt Islamic Univ Malaysia, Dept Mech Engn, Fac Engn, Kuala Lumpur 53100, Malaysia