Acoustic and elastic waves in metamaterials for underwater ...

A new type of acoustic metamaterial element is proposed that can be tuned to match the acoustic properties of water in the quasi-static regime. The element ...

Elastic effects in acoustic metamaterials are investigated. Water-based periodic arrays of elastic scatterers, sonic crystals, suffer from low transmission ...

Acoustic and elastic waves in metamaterials for underwater ...

OF THE DISSERTATION Acoustic and Elastic Waves in Metamaterials for Underwater Applications by ALEXEY S. TITOVICH Dissertation Director: Professor Andrew N.

Underwater acoustic metamaterials | National Science Review

Moreover, 2D acoustic cloaking can lower the visibility of hidden objects from underwater acoustic waves. Constructed from elements of the non-resonant circuits ...

A review of underwater acoustic metamaterials for ... - Frontiers

... acoustic materials cannot effectively absorb low-frequency sound waves and have low efficiency of elastic energy conversion. The sound ...

Acoustic metamaterials for underwater applications

Willis Coupling in Acoustic and Elastic Metamaterials. PhD thesis ... using bulk elastic waves. In Proceedings of 12th Anglo-French ...

Acoustic and elastic waves in metamaterials for underwater ...

Acoustic and elastic waves in metamaterials for underwater applications. A. Titovich. 2015. S2 logo Semantic Scholar · doi logo Publisher page · Google Scholar ...

Metamaterial Provides Underwater Stealth

metamaterial's elastic properties to tailor the interaction with underwater sound waves. ... attenuation of acoustic noise produced on the ...

Underwater sound absorption of a meta-absorption layer with ...

Consequently, acoustic metamaterials can be used for underwater anechoic coating [15], sound filter [16], vibration isolators [17], etc. Generally, the ...

Current developments in elastic and acoustic metamaterials science

Besides band gaps, another important feature of elastic metamaterials for wave conditioning is wave steering. For example, building on ...

Experimental investigation of composite metamaterial for ...

An underwater metamaterial combining aluminum foam and polyurea. · Sound absorption performance comes from the change in the sound propagation path and waveform ...

Characterization of underwater acoustic metamaterials inspired by ...

... material properties to control water-borne acoustic wave propagation ... elastic pentamode lattice that demonstrates anisotropic sound speeds due to ...

Topology optimization of chiral metamaterials with application to ...

This work extends the applications of chiral metamaterials to underwater sound insulation. Various chiral metamaterials with low acoustic ...

An-underwater-metamaterial-for-broadband-acoustic-absorption-at ...

The viscoelastic rubber and steel were named as materials 1 and 2, respectively, as shown in Fig. 3a. In the second and fourth sections, when the elastic wave ...

A review of piezoelectric metamaterials for underwater equipment

elastic waves. Under water, PMs are mainly used to absorb sound ... of thin-walled membrane and plate-type Acoustic/elastic metamaterials.

Silencing vibrations in the ground and sounds underwater

Recently, a research team at POSTECH has designed a metasurface that can control the acoustic or elastic waves. It is gaining attention as ...

Review and perspective on acoustic metamaterials - ResearchGate

Acoustic metamaterials have band gap properties that can prevent elastic waves from propagating through them [5][6][7] . ... A viscoelastic ...

Bending acoustic, elastic waves with metamaterials

In the past, scientists have used a combination of materials such as metal and rubber to effectively bend and control waves. Huang and his team ...

Technical Session Themes – Metamaterials Symposium

Elastic/underwater: Elastic, and underwater acoustic metamaterial demonstrations have been demonstrated in fewer instances than air-acoustic demonstrations.

Ultrathin acoustic metamaterial as super absorber for broadband ...

... underwater acoustic metamaterials and controlling underwater acoustic waves ... elastic behavior of steel on the acoustic performance is ...