Table 9.

Nondimensional natural frequencies $\Omega$ of CFFF and CFSF FGM square plates; “*” denotes the in-plane displacement-dominated mode.

BC	h/a	$\overline{\mathit{m}}$	Material Model	Mode
				1	2	3	4	5	6
CFFF	0.02	0	Power-Law	1.049	2.552	6.418	8.180	9.273	16.17
		0.5		0.8888	2.162	5.437	6.930	7.857	13.70
		2		0.7284	1.772	4.456	5.678	6.439	11.23
		5		0.6907	1.680	4.224	5.383	6.102	10.63
	0.1	0	Power-Law or M-T	1.038	2.439	6.079	6.581 *	7.716	8.546
		0.5	Power-Law	0.8000	2.072	5.168	5.907 *	6.555	7.280
			M-T	0.8089	1.960	4.879	5.606 *	6.186	6.877
		2	Power-Law	0.7211	1.698	4.230	4.946 *	5.359	5.962
			M-T	0.6973	1.643	4.087	4.650 *	5.176	5.759
		5	Power-Law	0.6828	1.601	3.981	4.275 *	5.047	5.594
			M-T	0.6666	1.564	3.886	4.073 *	4.926	5.457
CFSF	0.02	0	Power-Law	4.591	6.191	11.91	14.90	16.90	23.15
		0.5		3.664	4.950	9.511	11.89	13.50	18.48
		2		3.084	4.162	8.000	10.00	11.36	15.55
		5		2.950	3.981	7.652	9.569	10.86	14.87
	0.1	0		4.401	5.820	10.89	13.45	15.05	15.57 *
		0.5		3.526	4.678	8.742	10.83	12.14	13.27 *
		2		2.963	3.922	7.316	9.071	10.16	10.99 *
		5		2.818	3.724	6.935	8.563	9.569	9.641 *