Benchmark Solution for Free Vibration of Moderately Thick Functionally Graded Sandwich Sector Plates on Two-Parameter Elastic Foundation with General Boundary Conditions

Figure 11

Variations of fundamental frequency parameter of annular sector plate against different sector angles ( = 0.5, = 120°, = 0.2, and = = 5): (a) CCCC; (b) CFCF; (c) CE¹E¹E¹; (d) E³E³E³E³.

(a)

(b)

(c)

(d)