Static and Dynamic Characteristics of Composite Conoidal Shell Roofs

Table 1

Nondimensional central displacements (𝑤  ×  10³) of simply supported composite spherical shell under uniformly distributed load.

Lamination	0°/90°	0°/90°/0°	0°/90°/90°/0°
Reddy [1]	16.980	6.697	6.833
Present FEM (2×2)	8.294	5.116	4.644
(4×4)	16.898	6.724	6.820
(6×6)	16.969	6.710	6.826
(8×8)	17.009	6.707	6.835

𝑎/𝑏=1, 𝑎/ℎ=100, 𝐸₁₁=25𝐸₂₂, 𝐺₁₂=𝐺₁₃=0.5𝐸₂₂, 𝐺₂₃=0.2𝐸₂₂, 𝜈=0.25, 𝐸₂₂=10⁶ N/cm², 𝑅/𝑎=10³⁰.