Effect of thickness and infill density on acoustic performance of 3D printed panels made of natural fiber reinforced composites

Sekar, Vignesh and Eh Noum, Se Yong and Sivanesan, Sivakumar and Putra, Azma and Chin Vui Sheng, Desmond Daniel and Kassim, Dg Hafizah (2021) Effect of thickness and infill density on acoustic performance of 3D printed panels made of natural fiber reinforced composites. Journal of Natural Fibers. pp. 1-9. ISSN 1544-0478

Text INFILL DENSITY 3D PRINTED PANELS-JNF2-2021 .PDF Restricted to Registered users only Download (1MB)

Abstract

Additive manufacturing (AM) of Natural Fiber-Reinforced Composites through Fused Deposition Modeling is receiving much attention in recent years. AM is very appealing for complex shape structures that can be inconvenient to produce by other methods. In this study, the acoustic panel made from polylactic acid reinforced with wood fiber composite was 3D printed by varying its thickness and infill density. The sound absorption coefficient was measured using an impedance tube. The thin panel with back air gap was found to absorb sound at mid-frequency range resembling the Helmholtz resonator. The absorption performance for the thick panel can be controlled by controlling the infill density of the panel. Customizing the acoustic absorption is therefore possible for panels from biodegradable materials by AM.

Item Type:	Article
Uncontrolled Keywords:	Additive manufacturing, Fused deposition modeling, 3D printed Biodegradable acoustic panel, Natural fiberreinforced composites, Sound absorption, Infill density
Divisions:	Faculty of Mechanical Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	20 Dec 2021 14:43
Last Modified:	27 Jun 2023 15:56
URI:	http://eprints.utem.edu.my/id/eprint/25368
Statistic Details:	View Download Statistic

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