title: Cymatics for the cloaking of flexural vibrations in a structured plate.
abstract: Based on rigorous theoretical findings, we present a proof-of-concept design for a structured square cloak enclosing a void in an elastic lattice. We implement high-precision fabrication and experimental testing of an elastic invisibility cloak for flexural waves in a mechanical lattice. This is accompanied by verifications and numerical modelling performed through finite element simulations. The primary advantage of our square lattice cloak, over other designs, is the straightforward implementation and the ease of construction. The elastic lattice cloak, implemented experimentally, shows high efficiency.
authors.affiliation: DICAM, University of Trento, via Mesiano 77, I-38123 Trento, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Misseroni
authors.affiliation: Department of Mathematics, Imperial College London, South Kensington, London SW7 2AZ, UK.|Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, UK.
authors.forename: D J
authors.initials: DJ
authors.lastname: Colquitt
authors.affiliation: Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, UK.
authors.forename: A B
authors.initials: AB
authors.lastname: Movchan
authors.affiliation: Department of Mathematical Sciences, University of Liverpool, Liverpool L69 3BX, UK.
authors.forename: N V
authors.initials: NV
authors.lastname: Movchan
authors.affiliation: Mechanical Engineering and Materials Research Centre, Liverpool John Moores University, Liverpool L3 3AF, UK.
authors.forename: I S
authors.initials: IS
authors.lastname: Jones