Natural sonic crystal absorber constituted of seagrass (Posidonia Oceanica) fibrous spheres.

L Barguet, V Romero-García, N Jiménez, L M Garcia-Raffi, V J Sánchez-Morcillo, J-P Groby

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Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

L Barguet *Laboratoire d'Acoustique de l'Université du Mans (LAUM), UMR CNRS 6613, Institut d'Acoustique - Graduate School (IA-GS), CNRS, Le Mans Université, Le Mans, France.

V Romero-GarcíaLaboratoire d'Acoustique de l'Université du Mans (LAUM), UMR CNRS 6613, Institut d'Acoustique - Graduate School (IA-GS), CNRS, Le Mans Université, Le Mans, France.

N JiménezInstituto de Instrumentación para Imagen Molecular, Consejo Superior de Investigaciones Científicas, Universitat Politècnica de València, Camino de vera s/n, 46022, Valencia, Spain.

L M Garcia-RaffiInstituto Universitario de Matemática Pura y Aplicada (IUMPA), Universitat Politècnica de València, Camino de vera s/n, 46022, Valencia, Spain.

V J Sánchez-MorcilloInstituto de Investigación para la Gestión Integrada de Zonas Costeras, Universitat Politècnica de València, Paranimf, 46730, Gandia, Spain.

J-P Groby *Laboratoire d'Acoustique de l'Université du Mans (LAUM), UMR CNRS 6613, Institut d'Acoustique - Graduate School (IA-GS), CNRS, Le Mans Université, Le Mans, France. Jean-Philippe.Groby@univ-lemans.fr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present a 3-dimensional fully natural sonic crystal composed of spherical aggregates of fibers (called Aegagropilae) resulting from the decomposition of Posidonia Oceanica. The fiber network is first acoustically characterized, providing insights on this natural fiber entanglement due to turbulent flow. The Aegagropilae are then arranged on a principal cubic lattice. The band diagram and topology of this structure are analyzed, notably via Argand representation of its scattering elements. This fully natural sonic crystal exhibits excellent sound absorbing properties and thus represents a sustainable alternative that could outperform conventional acoustic materials.

Identifiers

PMID33436918

DOI10.1038/s41598-020-79982-9

PMCPMC7803767

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