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

Figure 5

Flutter velocity contours for orthotropic sandwich panel () with various gradient changes.

(a) GF = 1 (GS1)

(b) GF = 2 (GS1)

(c) GF = 3 (GS1)

(d) GF = 1 (GS2)

(e) GF = 2 (GS2)

(f) GF = 3 (GS2)

(g) GF = 1 (GS3)

(h) GF = 2 (GS3)

(i) GF = 3 (GS3)