Acoustic absorption of fibro-granular composite with cylindrical grains

Hasina Mamtaz, Mohammad Hosseini Fouladi, Mohd. Zaki Nuawi, Satesh Narayana Namasivayam, Masomeh Ghassem, Mushtak Al-Atabi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This paper reports the influence of cylindrical granular materials on the acoustic absorption performance of a natural fiber composite. The acoustic absorption behavior of an innovative fibro-granular composite composed of natural fibers combined with granular materials was investigated. The fibrous part of this new composite is fabricated using coconut coir fiber and the granular part by cylindrical rice husk grain. This study was motivated by a desire to improve the acoustical performance of materials made from natural (coir) fibers. The amount of binder additive added during composite preparation was considered by reconstructing the equation using fiber diameter as a new parameter. The acoustic properties of the novel composite were investigated based on the well-known Johnson-Champoux-Allard model by varying different physical parameters. The experimental analysis was performed in impedance tube to validate the analytical outcome. The developed analytical model employing Johnson-Champoux-Allard model was found to give predictions in good agreement with absorption coefficient data for the composite material samples with four different thicknesses. The effect of varying the different factors, such as sample thickness, fiber–grain size and fiber-grain ratio, on the acoustic absorption performance and the effect of the binder additive were also investigated. Results confirmed the potential of the new material as a promising acoustic absorber in the low-frequency region (less than 1 kHz).

Original languageEnglish
Pages (from-to)58-67
Number of pages10
JournalApplied Acoustics
Volume126
DOIs
Publication statusPublished - 1 Nov 2017

Fingerprint

composite materials
fibers
acoustics
granular materials
acoustic properties
fiber composites
rice
absorbers
absorptivity
impedance
tubes
low frequencies
preparation
predictions

Keywords

  • Acoustic absorption
  • Cylindrical grain
  • Fibro-granular composite
  • Natural fiber
  • Natural grain

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Mamtaz, H., Hosseini Fouladi, M., Nuawi, M. Z., Narayana Namasivayam, S., Ghassem, M., & Al-Atabi, M. (2017). Acoustic absorption of fibro-granular composite with cylindrical grains. Applied Acoustics, 126, 58-67. https://doi.org/10.1016/j.apacoust.2017.05.012

Acoustic absorption of fibro-granular composite with cylindrical grains. / Mamtaz, Hasina; Hosseini Fouladi, Mohammad; Nuawi, Mohd. Zaki; Narayana Namasivayam, Satesh; Ghassem, Masomeh; Al-Atabi, Mushtak.

In: Applied Acoustics, Vol. 126, 01.11.2017, p. 58-67.

Research output: Contribution to journalArticle

Mamtaz, H, Hosseini Fouladi, M, Nuawi, MZ, Narayana Namasivayam, S, Ghassem, M & Al-Atabi, M 2017, 'Acoustic absorption of fibro-granular composite with cylindrical grains', Applied Acoustics, vol. 126, pp. 58-67. https://doi.org/10.1016/j.apacoust.2017.05.012
Mamtaz H, Hosseini Fouladi M, Nuawi MZ, Narayana Namasivayam S, Ghassem M, Al-Atabi M. Acoustic absorption of fibro-granular composite with cylindrical grains. Applied Acoustics. 2017 Nov 1;126:58-67. https://doi.org/10.1016/j.apacoust.2017.05.012
Mamtaz, Hasina ; Hosseini Fouladi, Mohammad ; Nuawi, Mohd. Zaki ; Narayana Namasivayam, Satesh ; Ghassem, Masomeh ; Al-Atabi, Mushtak. / Acoustic absorption of fibro-granular composite with cylindrical grains. In: Applied Acoustics. 2017 ; Vol. 126. pp. 58-67.
@article{e10cf6585cd24d41b64021b0137eb16f,
title = "Acoustic absorption of fibro-granular composite with cylindrical grains",
abstract = "This paper reports the influence of cylindrical granular materials on the acoustic absorption performance of a natural fiber composite. The acoustic absorption behavior of an innovative fibro-granular composite composed of natural fibers combined with granular materials was investigated. The fibrous part of this new composite is fabricated using coconut coir fiber and the granular part by cylindrical rice husk grain. This study was motivated by a desire to improve the acoustical performance of materials made from natural (coir) fibers. The amount of binder additive added during composite preparation was considered by reconstructing the equation using fiber diameter as a new parameter. The acoustic properties of the novel composite were investigated based on the well-known Johnson-Champoux-Allard model by varying different physical parameters. The experimental analysis was performed in impedance tube to validate the analytical outcome. The developed analytical model employing Johnson-Champoux-Allard model was found to give predictions in good agreement with absorption coefficient data for the composite material samples with four different thicknesses. The effect of varying the different factors, such as sample thickness, fiber–grain size and fiber-grain ratio, on the acoustic absorption performance and the effect of the binder additive were also investigated. Results confirmed the potential of the new material as a promising acoustic absorber in the low-frequency region (less than 1 kHz).",
keywords = "Acoustic absorption, Cylindrical grain, Fibro-granular composite, Natural fiber, Natural grain",
author = "Hasina Mamtaz and {Hosseini Fouladi}, Mohammad and Nuawi, {Mohd. Zaki} and {Narayana Namasivayam}, Satesh and Masomeh Ghassem and Mushtak Al-Atabi",
year = "2017",
month = "11",
day = "1",
doi = "10.1016/j.apacoust.2017.05.012",
language = "English",
volume = "126",
pages = "58--67",
journal = "Applied Acoustics",
issn = "0003-682X",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Acoustic absorption of fibro-granular composite with cylindrical grains

AU - Mamtaz, Hasina

AU - Hosseini Fouladi, Mohammad

AU - Nuawi, Mohd. Zaki

AU - Narayana Namasivayam, Satesh

AU - Ghassem, Masomeh

AU - Al-Atabi, Mushtak

PY - 2017/11/1

Y1 - 2017/11/1

N2 - This paper reports the influence of cylindrical granular materials on the acoustic absorption performance of a natural fiber composite. The acoustic absorption behavior of an innovative fibro-granular composite composed of natural fibers combined with granular materials was investigated. The fibrous part of this new composite is fabricated using coconut coir fiber and the granular part by cylindrical rice husk grain. This study was motivated by a desire to improve the acoustical performance of materials made from natural (coir) fibers. The amount of binder additive added during composite preparation was considered by reconstructing the equation using fiber diameter as a new parameter. The acoustic properties of the novel composite were investigated based on the well-known Johnson-Champoux-Allard model by varying different physical parameters. The experimental analysis was performed in impedance tube to validate the analytical outcome. The developed analytical model employing Johnson-Champoux-Allard model was found to give predictions in good agreement with absorption coefficient data for the composite material samples with four different thicknesses. The effect of varying the different factors, such as sample thickness, fiber–grain size and fiber-grain ratio, on the acoustic absorption performance and the effect of the binder additive were also investigated. Results confirmed the potential of the new material as a promising acoustic absorber in the low-frequency region (less than 1 kHz).

AB - This paper reports the influence of cylindrical granular materials on the acoustic absorption performance of a natural fiber composite. The acoustic absorption behavior of an innovative fibro-granular composite composed of natural fibers combined with granular materials was investigated. The fibrous part of this new composite is fabricated using coconut coir fiber and the granular part by cylindrical rice husk grain. This study was motivated by a desire to improve the acoustical performance of materials made from natural (coir) fibers. The amount of binder additive added during composite preparation was considered by reconstructing the equation using fiber diameter as a new parameter. The acoustic properties of the novel composite were investigated based on the well-known Johnson-Champoux-Allard model by varying different physical parameters. The experimental analysis was performed in impedance tube to validate the analytical outcome. The developed analytical model employing Johnson-Champoux-Allard model was found to give predictions in good agreement with absorption coefficient data for the composite material samples with four different thicknesses. The effect of varying the different factors, such as sample thickness, fiber–grain size and fiber-grain ratio, on the acoustic absorption performance and the effect of the binder additive were also investigated. Results confirmed the potential of the new material as a promising acoustic absorber in the low-frequency region (less than 1 kHz).

KW - Acoustic absorption

KW - Cylindrical grain

KW - Fibro-granular composite

KW - Natural fiber

KW - Natural grain

UR - http://www.scopus.com/inward/record.url?scp=85019394844&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019394844&partnerID=8YFLogxK

U2 - 10.1016/j.apacoust.2017.05.012

DO - 10.1016/j.apacoust.2017.05.012

M3 - Article

VL - 126

SP - 58

EP - 67

JO - Applied Acoustics

JF - Applied Acoustics

SN - 0003-682X

ER -