Reproducibility of sound-absorbing periodic porous materials using additive manufacturing technologies: Round robin study

Tomasz Zieliński*, Kamil Opiela, Piotr Pawłowski, Nicolas Dauchez, Thomas Boutin, John Kennedy, Daniel Trimble, Henry Rice, Bart Van Damme, Gwenael Hannema, Rafał Wróbel, Seok Kim, Shahrzad Ghaffari Mosanenzadeh, Nicholas X. Fang, Jieun Yang, Baltazar Briere de La Hosseraye, Maarten Hornikx, Edouard Salze, Marie-Annick Galland, René BoonenAugusto Carvalho de Sousa, Elke Deckers, Mathieu Gaborit, Jean-Philippe Groby

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The purpose of this work is to check if additive manufacturing technologies are suitable for reproducing porous samples designed for sound absorption. The work is an inter-laboratory test, in which the production of samples and their acoustic measurements are carried out independently by different laboratories, sharing only the same geometry codes describing agreed periodic cellular designs. Different additive manufacturing technologies and equipment are used to make samples. Although most of the results obtained from measurements performed on samples with the same cellular design are very close, it is shown that some discrepancies are due to shape and surface imperfections, or microporosity, induced by the manufacturing process. The proposed periodic cellular designs can be easily reproduced and are suitable for further benchmarking of additive manufacturing techniques for rapid prototyping of acoustic materials and metamaterials.
Original languageEnglish
Article number101564
JournalAdditive Manufacturing
Volume36
DOIs
Publication statusPublished - 2020
Externally publishedYes

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