Wave propagation analysis of porous functionally graded piezoelectric nanoplates with a visco-Pasternak foundation

Abstract This study investigates the size-dependent wave propagation behaviors under thermoelectric loads of porous functionally graded piezoelectric (FGP) nanoplates deposited in a viscoelastic foundation. It is assumed that (i) material parameters obey power-law variation thickness and (ii) uniform porosity exists nanoplates. The combined effects viscoelasticity shear deformation are considered by using Kelvin-Voigt model refined higher-order theory. scale captured employing nonlocal strain gradient theory (NSGT). motion equations calculated accordance with Hamilton’s principle. Finally, dispersion characteristics numerically determined harmonic solution. results indicate (NLPs) length (LSPs) have exactly opposite on frequency. In addition, it found effect volume fractions (PVFs) frequency depends indices damping coefficients. When these two values small, increases fraction. By contrast, at larger index coefficient values, decreases as fraction increases.