Controlling sound with acoustic metamaterials

SA Cummer, J Christensen, A Alù - Nature Reviews Materials, 2016 - nature.com
Acoustic metamaterials can manipulate and control sound waves in ways that are not
possible in conventional materials. Metamaterials with zero, or even negative, refractive …

Elastic metamaterials with local resonances: an overview

X Zhou, X Liu, G Hu - Theoretical and Applied Mechanics Letters, 2012 - Elsevier
Metamaterials are artificial composite materials engineered to have properties that may not
be found in nature. By exploring locally resonant effect of the building units, elastic …

An elasto-mechanical unfeelability cloak made of pentamode metamaterials

T Bückmann, M Thiel, M Kadic, R Schittny… - Nature …, 2014 - nature.com
Metamaterial-based cloaks make objects different from their surrounding appear just like
their surrounding. To date, cloaking has been demonstrated experimentally in many fields of …

Invisible sensor: simultaneous sensing and camouflaging in multiphysical fields

TZ Yang, X Bai, D Gao, L Wu, B Li, JTL Thong… - ar** force of acoustical Bessel beams on a sphere and stable tractor beams
XD Fan, L Zhang - Physical Review Applied, 2019 - APS
We seek stable tractor beams that not only axially pull objects but also transversely trap the
object. Transverse force acting on a spherical particle centered on the axis of acoustic …

Boundary and interface conditions in the relaxed micromorphic model: Exploring finite-size metastructures for elastic wave control

G Rizzi, MV d'Agostino, P Neff… - … and Mechanics of …, 2022 - journals.sagepub.com
In this paper, we establish well-posed boundary and interface conditions for the relaxed
micromorphic model that are able to unveil the scattering response of fully finite-size …

Cancellation of acoustic scattering from an elastic sphere

MD Guild, A Alu, MR Haberman - The Journal of the Acoustical Society …, 2011 - pubs.aip.org
Recent research has suggested the possibility of creating acoustic cloaks using
metamaterial layers to eliminate the acoustic field scattered from an elastic object. This …