Nonlinear Vibrations of 3D Laminated Composite Beams

Figure 2

First four mode shapes (with normalized amplitudes) of laminated asymmetric cross ply [0°/90°/90°/0°] with clamped-clamped boundary conditions, 𝑙=1.0 m. (a) First mode; —𝑤₀, ----𝑢₀, (b) second mode: —𝑣₀, ----𝜃_𝑥, (c) third mode: —𝑤₀, ----𝑢₀, and (d) fourth mode: —𝑣₀, ----𝜃_𝑥.

(a)

(b)

(c)

(d)