Journal ArticleDOI
Efficient numerical evaluation of transmission loss in homogenized acoustic metamaterials for aeronautical application
TLDR
In this article, the authors investigate the soundproofing level of passive acoustic metamaterials made of Melamine Foam and cylindrical Aluminum inclusions, using a frequency-dependent approach.About:
This article is published in Applied Acoustics.The article was published on 2020-07-01. It has received 17 citations till now. The article focuses on the topics: Metamaterial & Sandwich panel.read more
Citations
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Prediction of acoustic wave transmission features of the multilayered plate constructions: A review:
TL;DR: In this article, the authors collected all of the existent papers in the field of acoustic transmission across multilayered plate constructions and proposed a comprehensive source consisting of approximately 410 papers.
Journal ArticleDOI
Vibro-acoustic analysis of composite plate-cavity systems via CUF finite elements
TL;DR: The aim of the this work is to develop reliable finite element models for vibro-acoustic analysis of structures made of advanced materials, coupled with fluid filled cavities, according to the Carrera’s Unified Formulation in order to enhance a wide class of powerful refined 2D plate theories with a unique formulation.
Journal ArticleDOI
Vibro-acoustic analysis of the sound transmission through aerospace composite structures
TL;DR: In this paper , an in-plane honeycomb sandwich structure used in aerospace applications has been modeled, in order to study the structural-acoustic performances of the sandwich panel using a finite element analysis software.
Journal ArticleDOI
Strategies towards a more sustainable aviation: A systematic review
Frederico Afonso,Martin Sohst,C. Diogo,Simão S. Rodrigues,Ana Ferreira,Inês Ribeiro,Ricardo Marques,Francisco F.C. Rego,A.R. Sohouli,Joana Portugal-Pereira,Hugo Policarpo,Bruno Marins Soares,Bruna Ferreira,Edgar C. Fernandes,Fernando Lau,Afzal Suleman +15 more
TL;DR: A review of the most upfront solutions towards greener aviation is presented and categorized as follows: concepts of operations, energy storage, propulsion systems, aerodynamics, structures, materials, and manufacturing processes as mentioned in this paper .
Journal ArticleDOI
Validation of FEM models based on Carrera Unified Formulation for the parametric characterization of composite metamaterials
TL;DR: In this article, the dispersion relations of composite metamaterials are derived by applying the Bloch-Floquet theory to the unit cell of the periodic microstructure, and transmission curves are computed to validate the band gaps encountered in the analysis of dispersion behavior.
References
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Journal ArticleDOI
Flexible mechanical metamaterials
TL;DR: In this article, the design principles leading to these properties are identified and discussed, in particular, linear and mechanism-based metamaterials (such as origami-based and kirigami based metammaterials), harnessing instabilities and frustration, and topological and nonlinear metam materials.
Journal ArticleDOI
Acoustic metamaterials: From local resonances to broad horizons.
Guancong Ma,Ping Sheng +1 more
TL;DR: This review traces the development of acoustic metamaterials from the initial findings of mass density and bulk modulus frequency dispersions in locally resonant structures to the diverse functionalities afforded by the perspective of negative constitutive parameter values, and their implications for acoustic wave behaviors.
Journal ArticleDOI
Membrane-Type Acoustic Metamaterial with Negative Dynamic Mass
TL;DR: In this article, the authors present the experimental realization and theoretical understanding of a membrane-type acoustic metamaterial with very simple construct, capable of breaking the mass density law of sound attenuation in the 100-1000 Hz regime by a significant margin.
Journal Article
Membrane-type acoustic metamaterial with negative dynamic mass
TL;DR: The experimental realization and theoretical understanding of a membrane-type acoustic metamaterial with very simple construct, capable of breaking the mass density law of sound attenuation in the 100-1000 Hz regime by a significant margin are presented.
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Acoustic metamaterials with circular sector cavities and programmable densities.
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