Free Vibration Investigations of Rotating FG Beams Resting on Elastic Foundation with Initial Geometrical Imperfection in Thermal Environments

Table 3

Temperature-dependent material properties [40].

Materials	P0	P−1	P1	P2	P3	P (300 K)
Ceramic aluminum oxide (Al2O3)
E (Pa)	349.55e9	0	−3.853e−4	4.027e−7	−1.673e−10	320.24e9
(1/K)	6.8269e−6	0	1.838e−4	0	0	7.203e−6
	0.26	0	0	0	0	0.260
(kg/m^3)	3800	0	0	0	0	3800
Metal stainless steel SUS304
E (Pa)	201.04e9	0	3.079e−4	−6.534e−7	0	207.79e9
(1/K)	12.330e−6	0	8.086e−4	0	0	15.321e−6
	0.326	0	−2.002e−4	3.797e−7	0	0.318
(kg/m^3)	8166	0	0	0	0	8166