Structural Stability and Dynamics of FGM Plates Using an Improved 8-ANS Finite Element

Table 3

Nondimensional natural frequency of simply supported FGM plates ().

Material parameter	Navier solution	Mode number
		1		2		3
		Ref. [2]	Present	Ref. [2]	Present	Ref. [2]	Present
Pure ceramic	8.992	9.041	8.772	22.705	21.940	22.705	21.940
	7.518	7.555	7.526	18.992	18.819	18.993	18.820
	7.419	7.457	7.430	18.745	18.575	18.747	18.576
	7.333	7.373	7.348	18.533	18.365	18.535	18.367
	7.307	7.348	7.323	18.470	18.302	18.472	18.304
Pure metal	6.123	6.148	6.287	15.459	15.726	15.459	15.726

Results are calculated by .