New Finite Modeling of Free and Forced Vibration Responses of Piezoelectric FG Plates Resting on Elastic Foundations in Thermal Environments

Table 3

Comparison of first nondimensional natural frequencies of fully simply supported FGM plates resting on two-parameter elastic foundation.

	a/h	N	[41]	This work
(0, 0)	20	0	0.0239	0.0239
		0.25	0.0226	0.0231
		1	0.0215	0.0220
		5	0.0218	0.0225
			0.0204	0.0206
	10	0	0.0918	0.0919
		0.25	0.0860	0.0888
		1	0.0815	0.0848
		5	0.0817	0.0860
			0.0789	0.0790
(250, 25)	20	0	0.0342	0.0342
		0.25	0.0328	0.0331
		1	0.0318	0.0321
		5	0.0323	0.0328
			0.0293	0.0294
	10	0	0.1336	0.1337
		0.25	0.1277	0.1295
		1	0.1238	0.1258
		5	0.1253	0.1279
			0.1148	0.1148