Maximization of fundamental frequencies of axially compressed laminated plates against fiber orientation

Free vibration analyses of rectangular- and square-composite laminated plates subjected to uniaxial compressive forces are carried out by employing the ABAQUS finite element program. The fundamental frequencies of rectangular- and square-composite laminated plates with a given material system are then maximized with respect to fiber orientations by using the golden section method. Through a parametric study, the significant influences of end conditions, plate aspect ratio, circular cutout, and compressive force on the maximum fundamental frequencies and the associated optimal fiber orientations are demonstrated and discussed.