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

Figure 8

Classical critical loads and reduced stiffness critical loads versus the varying thickness of a single 90^∘ ply in the case of [(90^∘)_𝑡90^∘,(0^∘)_𝑡0^∘,(0^∘)_𝑡0^∘]_𝑠 with the total shell thickness unchanged, the total fibre volume fraction fixed at 0.5, and the fibre volume fraction of the 90^∘ ply fixed at 0.75.