Journal ArticleDOI
Predicting the sound absorption of natural materials: Best-fit inverse laws for the acoustic impedance and the propagation constant
Umberto Berardi,Gino Iannace +1 more
TLDR
In this article, an inverse method to predict the acoustical properties of nine natural fibers (kenaf, wood, hemp, coconut, straw, and granular cork) is presented.About:
This article is published in Applied Acoustics.The article was published on 2017-01-01. It has received 162 citations till now. The article focuses on the topics: Acoustic impedance.read more
Citations
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Journal ArticleDOI
Porous materials for sound absorption
TL;DR: In this article, the recent progress in the design and fabrication of porous sound absorption materials is summarized and highlighted, and the review concludes with some perspectives and outlook for the porous materials.
Journal ArticleDOI
Acoustic energy absorption properties of fibrous materials: A review
Xiaoning Tang,Xiong Yan +1 more
TL;DR: In this paper, the authors summarized the recent advances concerning the acoustic absorption of various fibrous materials, including inorganic and metallic fibers, synthetic fibers, natural fibers, and nanofibrous membranes for noise reduction.
Journal ArticleDOI
Highly compressible and anisotropic lamellar ceramic sponges with superior thermal insulation and acoustic absorption performances.
Chao Jia,Lei Li,Ying Liu,Ben Fang,He Ding,Jianan Song,Yibo Liu,Kejia Xiang,Sen Lin,Ziwei Li,Wenjie Si,Bo Li,Xing Sheng,Dongze Wang,Xiaoding Wei,Hui Wu +15 more
TL;DR: This work presents a facile method for large-scale fabrication of highly compressible, temperature resistant SiO2-Al2O3 composite ceramic sponges by blow spinning and subsequent calcination, and successfully produces anisotropic lamellar ceramic spongs with numerous stacked microfiber layers and density.
Journal ArticleDOI
Environmentally-friendly thermal and acoustic insulation materials from recycled textiles.
Shafiqul Islam,Gajanan Bhat +1 more
TL;DR: A comprehensive review of the current state of textile waste generation and its environmental effects, and present progress of using industrial and post-consumer recycled textiles in insulation materials is provided.
Journal ArticleDOI
Improving the sound absorption performance of sustainable thermal insulation materials: Natural hemp fibres
Andrea Santoni,Paolo Bonfiglio,Patrizio Fausti,Cristina Marescotti,Valentina Mazzanti,Francesco Mollica,Francesco Pompoli +6 more
TL;DR: In this paper, a simplified model to evaluate the acoustic performance of hemp fibrous materials as a function of their density is proposed, in order to provide a practical tool to investigate and compare different solutions.
References
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Journal ArticleDOI
Acoustical properties of fibrous absorbent materials
M.E. Delany,E.N. Bazley +1 more
TL;DR: In this article, the authors investigated the acoustical properties of a range of fibrous absorbent materials and showed that the characteristic impedance and propagation coefficient of these materials normalize as a function of frequency divided by flow-resistance.
Journal ArticleDOI
Generalized Theory of Acoustic Propagation in Porous Dissipative Media
TL;DR: In this article, the authors extended the theory of acoustic propagation in porous media to include anisotropy, viscoelasticity, and solid dissipation, and a more refined analysis of the relative motion of the fluid in the pores is also developed by introducing the concept of viscodynamic operational tensor.
Journal ArticleDOI
Life cycle assessment of building materials: Comparative analysis of energy and environmental impacts and evaluation of the eco-efficiency improvement potential
TL;DR: In this article, the authors present the results of an LCA study comparing the most commonly used building materials with some eco-materials using three different impact categories, and propose guidelines for materials selection in the eco-design of new buildings and rehabilitation of existing buildings.
Journal ArticleDOI
Acoustical Properties of porous materials : Modifications of Delany-Bazley models
TL;DR: In this article, the characteristic impedance and propagation constant of porous materials are discussed from a viewpoint of physical realizability, and new regression models based on experimental data by Delany and Bazley are derived.
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Acoustic characterization of natural fibers for sound absorption applications
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