Free Vibration of Composite Cylindrical Shells Based on Third-Order Shear Deformation Theory

Table 1

The value of frequency parameter of two-layered orthotropic shells under S-S boundary conditions is compared with Khare et al. [45] and Bhimaraddi [46].

		Present	Khare et al. [45]		Bhimaraddi [46]
		HSDT	FOST	HOST	PSD	CSD
1	0.05	0.77214	0.78567	0.78627	0.79993	0.79798
	0.10	1.03241	1.04062	1.04357	1.09189	1.07475
	0.15	1.28216	1.29578	1.30351	1.38174	1.33274
2	0.05	0.55132	0.56568	0.56684	0.58000	0.57733
	0.10	0.91734	0.91367	0.91801	0.95664	0.93653
	0.15	1.22513	1.22101	1.23107	1.28933	1.23527