Modal Decoupling Using the Method of Weighted Residuals for the Nonlinear Elastic Dynamics of a Clamped Laminated Composite

Table 1

Physical parameters of a PWB.

Layer	Material	Specific weight  (g/cm^3)	Young's module(MPa)	Poisson ratio	Thickness (mm)
1	Cu/FR-4	7.599	17.9∗10^4	0.205	0.030
2	FR-4	1.200	18.6∗10^4	0.190	0.200
3	Cu	8.310	11.8∗10^4	0.400	0.035
4	FR-4	1.200	18.6∗10^4	0.190	1.000