Static and Dynamic Characteristics of Composite Conoidal Shell Roofs

Table 4

Nondimensional dynamic deflections of the conoidal shell.

Boundary condition	Lamination (degree)	Dynamic deflections
		Load case I	Load case II	Load case III
CCSS	0/90	0.000687 (15)	0.000687 (15)	0.000342 (15)
	0/90/0	0.000598 (11)	0.000597 (11)	0.000265 (11)
	0/90/0/90	0.000522 (9)	0.000522 (9)	0.000262 (10)
	0/90/90/0	0.000546 (10)	0.000546 (10)	0.000256 (9)
	45/−45	0.000227 (3)	0.000227 (3)	0.000105 (3)
	45/−45/45	0.000241 (4)	0.000241 (4)	0.000118 (4)
	45/−45/45/−45	0.000178 (1)	0.000178 (1)	8.35𝐸−05 (1)
	45/−45/−45/45	0.000196 (2)	0.000196 (2)	9.24𝐸−05 (2)
SSCC	0/90	0.000811 (16)	0.000814 (16)	0.000413 (16)
	0/90/0	0.000665 (14)	0.000665 (14)	0.000295 (12)
	0/90/0/90	0.000658 (12)	0.000658 (12)	0.000323 (14)
	0/90/90/0	0.000662 (13)	0.000662 (13)	0.000295 (13)
	45/−45	0.000418 (8)	0.000418 (8)	0.000188 (8)
	45/−45/45	0.000315 (7)	0.000315 (7)	0.000142 (7)
	45/−45/45/−45	0.000301 (6)	0.000301 (6)	0.000139 (6)
	45/−45/−45/45	0.000294 (5)	0.000294 (5)	0.000136 (5)

𝑎/𝑏=1, 𝑎/ℎ=100, ℎ_ℎ/𝑎=0.2, ℎ_𝑙/ℎ_ℎ=0.25, 𝐸₁₁=25𝐸₂₂, 𝐺₁₂=𝐺₁₃=0.5𝐸₂₂, 𝐺₂₃=0.2𝐸₂₂, 𝜈₁₂=0.25, and 𝜌=100 Nsec²/m⁴.
Values in parentheses indicate ranks for respective shell actions.