Fig. 9
From: Enriched homogenized model for viscoelastic plane wave propagation in periodic layered composites

Metamaterial 1—Homogenized displacement profiles at \(x=20D\), with respect to relaxation time [B] \((\kappa =0.256s)\) for loading frequency F at i 50 \(\mathrm {Hz}\), ii 1000 \(\mathrm {Hz}\), and with respect to [C] \((\kappa =0.0255s)\) for F at iii 50 \(\mathrm {Hz}\), iv 1000 \(\mathrm {Hz}\)