Design Optimisation of Lower-Bound Buckling Capacities for FRP-Laminated Cylindrical Shells

Figure 10

Energy contributions in the classical critical mode 𝑗=1 and 𝑗=4 for the case of [90^∘,0^∘,0^∘]_s with 𝑅=405 and 𝐿=1.024: (a) in mode 𝑗=1, (b) in mode 𝑗=4, and (c) nonlinear axial membrane energy component in 𝑗=1 and 𝑗=4.

(a)

(b)

(c)