The Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterial
Joint Authors
Bennett, Gareth J.
Kennedy, John
Flanagan, Lara
Dowling, Luke
Rice, Henry
Trimble, Daniel
Source
International Journal of Polymer Science
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-24
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Advancements in 3D print technology now allow the printing of structured acoustic absorbent materials at the appropriate microscopic scale and sample sizes.
The repeatability of the fundamental cell unit of these metamaterials provides a pathway for the development of viable macro models to simulate built-up structures based on detailed models of the individual cell units; however, verification of such models on actual manufactured structures presents a challenge.
In this paper, a design concept for an acoustic benchmark metamaterial consisting of an interlinked network of resonant chambers is considered.
The form chosen is periodic with cubes incorporating spherical internal cavities connected through cylindrical openings on each face of the cube.
This design is amenable to both numerical modelling and manufacture through additive techniques whilst yielding interesting acoustic behaviour.
The paper reports on the design, manufacture, modelling, and experimental validation of these benchmark structures.
The behaviour of the acoustic metamaterial manufactured through three different polymer-based printing technologies is investigated with reference to the numerical models and a metal powder-based print technology.
At the scale of this microstructure, it can be seen that deviations in surface roughness and dimensional fidelity have a comparable impact on the experimentally measured values of the absorption coefficient.
American Psychological Association (APA)
Kennedy, John& Flanagan, Lara& Dowling, Luke& Bennett, Gareth J.& Rice, Henry& Trimble, Daniel. 2019. The Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterial. International Journal of Polymer Science،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1168164
Modern Language Association (MLA)
Kennedy, John…[et al.]. The Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterial. International Journal of Polymer Science No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1168164
American Medical Association (AMA)
Kennedy, John& Flanagan, Lara& Dowling, Luke& Bennett, Gareth J.& Rice, Henry& Trimble, Daniel. The Influence of Additive Manufacturing Processes on the Performance of a Periodic Acoustic Metamaterial. International Journal of Polymer Science. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1168164
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168164