Free Vibration Analysis of the Unified Functionally Graded Shallow Shell with General Boundary Conditions

Table 9

Frequency parameters for Al/Al₂O₃ spherical shell with different BC and varying geometric parameters.

Material type			BC
			SSSS	SE^1SE^1	SCSC	CFCF	CE^2CE^2	CCCC	E^1E^2E^1E^2	E^3FE^3F
	1	0.1	4.925	6.125	6.409	5.055	7.243	7.894	1.322	0.822
		0.05	7.477	8.481	9.196	7.285	9.747	11.361	3.415	2.159
		0.01	32.351	32.787	34.926	17.654	33.135	37.776	24.646	7.302
	2	0.1	15.821	21.297	24.259	11.287	20.579	25.672	4.597	2.176
		0.05	27.257	31.297	36.784	13.356	30.304	39.615	11.859	4.494
		0.01	128.022	130.877	139.230	25.017	96.411	141.174	83.190	15.355
	1	0.1	4.811	5.978	6.271	5.008	7.079	7.773	1.335	0.822
		0.05	7.403	8.388	9.109	7.268	9.643	11.283	3.435	2.155
		0.01	32.298	32.732	34.864	17.628	33.064	37.709	24.590	7.294
	2	0.1	15.500	20.813	23.870	11.219	20.774	25.311	4.643	2.167
		0.05	27.018	30.980	36.437	13.223	29.965	39.262	11.929	4.466
		0.01	127.816	130.666	138.997	24.983	96.203	140.922	83.010	15.328