Acoustic metamaterial behavior of three-dimensional periodic architectures assembled by robocasting

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00437173" target="_blank" >RIV/61388998:_____/14:00437173 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4902810" target="_blank" >http://dx.doi.org/10.1063/1.4902810</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4902810" target="_blank" >10.1063/1.4902810</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Acoustic metamaterial behavior of three-dimensional periodic architectures assembled by robocasting

Popis výsledku v původním jazyce

Ultrasonic measurements combined with numerical modelling are used to analyze the elastic and acoustic properties of morphologically complex ceramic bodies assembled by the Robocasting technique. It is shown that the micromechanics of the robocast periodic scaffolds leads to several metamaterial-like wave propagation phenomena. Besides the expectable prominent elastic anisotropy and the frequency band structure resulting from the periodicity of the scaffold, a wave-mode mixing is observed that disablesthe conventional distinguishing between quasi-longitudinal, quasi-shear, and pure shear modes for propagation in the symmetry planes of the structure. This paper proves the capability of Robocasting, as a versatile three-dimensional (3D) printing method,to produce tailored acoustic metamaterials with very low damping and outstandingly strong acoustic anomalies.

Název v anglickém jazyce

Acoustic metamaterial behavior of three-dimensional periodic architectures assembled by robocasting

Popis výsledku anglicky

Ultrasonic measurements combined with numerical modelling are used to analyze the elastic and acoustic properties of morphologically complex ceramic bodies assembled by the Robocasting technique. It is shown that the micromechanics of the robocast periodic scaffolds leads to several metamaterial-like wave propagation phenomena. Besides the expectable prominent elastic anisotropy and the frequency band structure resulting from the periodicity of the scaffold, a wave-mode mixing is observed that disablesthe conventional distinguishing between quasi-longitudinal, quasi-shear, and pure shear modes for propagation in the symmetry planes of the structure. This paper proves the capability of Robocasting, as a versatile three-dimensional (3D) printing method,to produce tailored acoustic metamaterials with very low damping and outstandingly strong acoustic anomalies.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GB14-36566G" target="_blank" >GB14-36566G: Multidisciplinární výzkumné centrum moderních materiálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Physics Letters

ISSN

0003-6951

e-ISSN

—

Svazek periodika

105

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

"211904_1"-"211904_4"

Kód UT WoS článku

000345639400013

EID výsledku v databázi Scopus

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