Table 3.

Comparison of dimensionless natural frequency $\Omega$($\Omega =\omega R\sqrt{\rho /E}$) of a simply supported–simply supported (SS–SS) isotropic homogeneous cylindrical shell (κ₀ = 0, l = 0).

h/R	(m, n)	Present	Beni et al. [42]	Alibeigloo and Shaban [63]
0.02	(1,1)	0.1954	0.1954	0.1968
	(2,2)	0.2532	0.2532	0.2563
	(3,3)	0.2772	0.2772	0.2773
0.05	(1,1)	0.1959	0.1959	0.2004
	(2,2)	0.2623	0.2623	0.2633
	(3,3)	0.3220	0.3220	0.3158