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

Figure 13

Variations of fundamental frequency parameter Ω of annular sector plate with material types and different thickness schemes ( = 0.5, = 120°, = 0.2, and = = 5): (a) CCCC; (b) E³E³E³E³.

(a)

(b)