A Finite Element Formulation and Nonlocal Theory for the Static and Free Vibration Analysis of the Sandwich Functionally Graded Nanoplates Resting on Elastic Foundation

Figure 7

The variation of the dimensionless stresses of sandwich FG square nanoplate along with the thickness corresponding to two different proportions of material layers: (a) with the proportion of material layers 1-2-1; (b) with the proportion of material layers 1-2-1; (c) with the proportion of material layers 2-2-1; (d) with the proportion of material layers 2-2-1.

(a)

(b)

(c)

(d)