Vibration Characteristics of Ring-Stiffened Functionally Graded Circular Cylindrical Shells

Table 3

Properties of materials.

Coefficients	Stainless steel			Nickel
	𝐸 (N/m^2)	𝜈	𝜌 (kg/m^3)	𝐸 (N/m^2)	𝜈	𝐸 (N/m^2)
𝑝0	201.04×10^9	0.3262	8166	223.95×10^9	0.3100	8900
𝑝−1	0	0	0	0	0	0
𝑝1	3.079×10^−4	−2.002×10^−4	0	−2.794×10^−4	0	0
𝑝2	−6.534×10^−7	3.797×10^−7	0	−3.998×10^−9	0	0
𝑝3	0	0	0	0	0	0
	2.07788×10^11	0.317756	8166	2.05098×10^11	0.3100	8900