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

<div>Fundamental natural frequency λ2 of homogeneous beam with clamped-clamped boundary condition, Mzz/Mb = 0.4 and central delamination located in midplane H2/H = 0.5, versus normalized axial force in “free mode” model for different values of L2/L.</div>

Shock and Vibration

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Figure 4

Figure 4: A Finite Element Formulation for Bending-Torsion Coupled Vibration Analysis of Delaminated Beams under Combined Axial Load and End Moment 