Fig. 3

The influence of micro-stiffness length scale parameter \(l\) on the dispersion curves and the band gaps in the flexoelectric gradient model \(({l_1}=1 \times {10^{ - 5}},f={10^{ - 5}},L=20,{L_1}=5,F=200)\).
The influence of micro-stiffness length scale parameter \(l\) on the dispersion curves and the band gaps in the flexoelectric gradient model \(({l_1}=1 \times {10^{ - 5}},f={10^{ - 5}},L=20,{L_1}=5,F=200)\).