Reconfigurable Elastic Metamaterials: Engineering Dispersion with MeccanoTM
Abstract
We design, simulate and experimentally characterise a reconfigurable elastic metamaterial with beyond-nearest-neighbour (BNN) coupling. The structure is composed from the popular British model construction system, MeccanoTM. The MeccanoTM metamaterial supports backwards waves with opposite directions of phase and group velocities. We experimentally verify three distinct configurations and acoustically infer their spatial vibration spectra.
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