Abstract
Localization of bending waves is observed on a steel plate decorated with Lucite blocks. A significant experimental feature of the localized modes is an exponential decay of the mode intensity from their peaked centers, with a decay length that increases as (${\mathit{f}}_{0}$-f${)}^{\mathrm{\ensuremath{-}}1}$ when the mode frequency f approaches a quasi mobility edge ${\mathit{f}}_{0}$. Our experimental results, together with finite-element calculations, support the mechanism of strong bending wave scattering by the Lucite block resonances as the source of the localization phenomenon.
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