Free Vibration Analysis of Composite Conical Shells with Variable Thickness

Table 3

Influence of sinusoidal thickness variation on the fundamental frequency parameter of three- and five-layered conical shells with KE/EGE/KE and KE/EGE/GE/EGE/KE material combinations.

Cs	C-F		S-S
	45°/0°/45°	45°/60°/0°/60°/45°	45°/0°/45°	45°/60°/0°/60°/45°
	KE/EGE/KE	KE/EGE/GE/EGE/KE	KE/EGE/KE	KE/EGE/GE/EGE/KE
−0.5	0.165313	0.156536	0.443432	0.375673
−0.3	0.076568	0.075873	0.436273	0.380052
−0.1	0.098835	0.095561	0.444782	0.385077
0.1	0.120564	0.115250	0.448693	0.385777
0.3	0.142597	0.135491	0.448082	0.382432
0.5	0.165313	0.156536	0.443432	0.375673