![]() These theoretical developments have been complemented with a series of experimental implementations of multi-scale mechanical cloaks performed by the group led by Wegener 17, 18, 19. Notable recent advances in the theoretical analysis of cloaks for elastic waves have been made by Milton et al. In contrast, the significantly more challenging problem of creating invisibility cloaks and metamaterials for elastodynamics has been much less studied. Since the first experimental demonstration of the microwave invisibility cloak 3, there has been an explosion of theoretical and practical advances in the design and analysis of electromagnetic metamaterials 4. In particular, for the lattice implementation, the cloaking transformation is not singular and hence does not require unrealistic infinite wave speed at the interior contour of the cloak. It is based on the rigorous theoretical findings of Colquitt et al. ![]() In this paper we present a novel practical design and an experimental implementation of an approximate cloak in a structured flexural plate.
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