Flutter Characteristic Study of Composite Sandwich Panel with Functionally Graded Foam Core

Table 3

Average increases of the flutter speeds for various GS and GF compared with the sandwich panel with no gradient change.

	GF1	GF2	GF3
GS1	2.33%	4.07%	26.58%
GS2	1.94%	3.69%	5.32%
GS3	−0.10%	−0.58%	−1.45%