Research Article

A Finite Element Formulation for Bending-Torsion Coupled Vibration Analysis of Delaminated Beams under Combined Axial Load and End Moment

Figure 7

Trend of change in fundamental natural frequencies (λ2) with respect to normalized buckling load P0/Pcr for both constrained and free modes with H2/H = 0.5, Mzz/Mb = 0.4, and different values of L2/L.