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.
@article{arxiv.2206.10487,
title = {Reconfigurable Elastic Metamaterials: Engineering Dispersion with Meccano$^{\text{TM}}$},
author = {G. J. Chaplain and I. R. Hooper and A. P. Hibbins and T. A. Starkey},
journal= {arXiv preprint arXiv:2206.10487},
year = {2022}
}