[Retracted] Free Vibration Analysis of Thick Rectangular and Elliptical Plates with Concentric Cut-Out

Table 10

Frequency parameter for supported elliptical plate with and h/b = 0.2.

	0	0.1	0.2	0.3	0.4	0.5	0.6
	1.1521	1.1167	1.0688	1.0528	1.0810	1.1622	1.3106
	1.7680	1.7606	1.7244	1.6674	1.6338	1.6604	1.6913
	2.7027	2.6848	2.7079	2.1736	1.8632	1.7208	1.7764
	3.3858	3.2700	2.7181	2.7295	2.6171	2.4452	2.3393
	3.8667	3.8222	3.7156	3.5897	3.3512	3.1934	3.1870
	3.8667	3.8378	3.7652	3.7843	4.0480	4.0253	3.8016