Vibration Properties of a Steel-PMMA Composite Beam

Table 2

Performance parameters of materials.

Material name	Density () Kg/m^3	Modulus () (pa)	Poisson’s ratio	Lame coefficients (pa)	Lame coefficients (pa)
Steel	7840	2.16 × 10^11	0.28	1.002 × 10^10	8.29 × 10^11
PMMA	1300	1.37 × 10^5	0.47	3.87 × 10^9	1.2 × 10^9
Aluminum	2799	7.21 × 10^10	0.344	5.43 × 10^10	2.56 × 10^10
Epoxy	1142	2.9 × 10^9	0.378	3.2602 × 10^9	1.1328 × 10^9