Journals
Publish with us
Publishing partnerships
About us
Blog
Journal of Engineering
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Journal of Engineering
/
2019
/
Article
/
Tab 11
/
Review Article
Additive Manufacturing: A Novel Method for Developing an Acoustic Panel Made of Natural Fiber-Reinforced Composites with Enhanced Mechanical and Acoustical Properties
Table 11
Acoustical absorption coefficient of natural fibers.
Fibers
Fiber properties
Frequency (Hz)
Absorption coefficient (
α
)
References
Coir
Thickness, 35 mm
500
0.84
[
70
]
Oil palm
Thickness, 50 mm
1000
0.90
[
88
]
Flax
Diameter, 21.8
μ
m
500
0.40
[
89
]
Kenaf
Thickness, 50 mm
500
0.74
[
70
]
Jute
Diameter, 81.2
μ
m
500
0.20
[
89
]
Ramie
Thickness, 40 mm
800
0.60
[
90
]
Hemp
Thickness, 40 mm
500
0.60
[
70
]
Sisal
Diameter, 213
μ
m
500
0.10
[
89
]
Cotton
Diameter, 13.5
μ
m
500
0.50
[
89
]
Bagasse
Thickness, 20 mm
500
0.13
[
91
]
Corn
Thickness, 20 mm
500
0.16
[
91
]