Acoustic Performances of Polymers Hierarchical Structure Produced with Material Jetting Technology

Abstract:

This research is aimed at testing the ability of high-end 3D printers to reproduce complex structures having some acoustic performances in terms of sound absorption and sound transmission loss. Specifically, some experiments were made on four different types of geometries to compare their acoustic behaviour. The sound absorption and sound insulation of the samples have been evaluated by means of a four-microphone impedance tube. The adopted technique allows to retrieve the transfer matrix of each specimen and then, through a composition of the matrices, to virtually determine the acoustic performances of any arrangement of the different samples. The experiments revealed promising results in terms of quality, finishing and precision of the jetting process, highlighting benefits and critical issues related to the acoustic performances.

• Periodical: Key Engineering Materials (Volume 926)
• Pages: 168-175
• DOI: https://doi.org/10.4028/p-g9is26
• Online since: July 2022
• Authors: Elisa Levi*, Edoardo Alessio Piana, Luca Giorleo
• Keywords: Acoustic Properties of Materials, Additive Manufacturing, Hierarchical Structure

References

[1] Gao, W., Zhang, Y., Ramanujan, D., Ramani, K., Chen, Y., Williams, C.B., Wang, C.C.L., Shin, Y.C., Zhang, S., Zavattieri, P.D. The status, challenges, and future of additive manufacturing in engineering (2015) CAD Computer Aided Design, 69, pp.65-89.

DOI: 10.1016/j.cad.2015.04.001

[2] Ligon, S.C., Liska, R., Stampfl, J., Gurr, M., Mülhaupt, R. Polymers for 3D Printing and Customized Additive Manufacturing (2017) Chemical Reviews, 117 (15), pp.10212-10290.

DOI: 10.1021/acs.chemrev.7b00074

[3] Panesar, A., Abdi, M., Hickman, D., Ashcroft, I. Strategies for functionally graded lattice structures derived using topology optimisation for Additive Manufacturing (2018) Additive Manufacturing, 19, pp.81-94.

DOI: 10.1016/j.addma.2017.11.008

[4] Liu, Z., Zhan, J., Fard, M., Davy, J.L. Acoustic properties of a porous polycarbonate material produced by additive manufacturing (2016) Materials Letters, 181, pp.296-299.

DOI: 10.1016/j.matlet.2016.06.045

[5] Fotsing, E.R., Dubourg, A., Ross, A., Mardjono, J. Acoustic properties of a periodic micro-structures obtained by additive manufacturing (2019) Applied Acoustic, 148, 322-331.

DOI: 10.1016/j.apacoust.2018.12.030

[6] Boulvert, J., Costa-Baptista, J., Cavalieri, T., Perna, M., Fotsing, E.R., Romero-García, V., Gabard, G., Ross, A., Mardjono, J., Groby, J.-P. Acoustic modeling of micro-lattices obtained by additive manufacturing (2020) Applied Acoustics, 164, art. no. 107244.

DOI: 10.1016/j.apacoust.2020.107244

[7] Zieliński, T.G., Opiela, K.C., Pawłowski, P., Dauchez, N., Boutin, T., Kennedy, J., Trimble, D., Rice, H., Van Damme, B., Hannema, G., Wróbel, R., Kim, S., Ghaffari Mosanenzadeh, S., Fang, N.X., Yang, J., Briere de La Hosseraye, B., Hornikx, M.C.J., Salze, E., Galland, M.-A., Boonen, R., Carvalho de Sousa, A., Deckers, E., Gaborit, M., Groby, J.-P. Reproducibility of sound-absorbing periodic porous materials using additive manufacturing technologies: Round robin study (2020) Additive Manufacturing, 36, art. no. 101564.

DOI: 10.1016/j.addma.2020.101564

[8] Zhang, X., Qu, Z., Wang, H. Engineering Acoustic Metamaterials for Sound Absorption: From Uniform to Gradient Structures (2020) iScience, 23 (5), art. no. 101110.

DOI: 10.1016/j.isci.2020.101110

[9] ASTM Standard E2611-19, Test Method for Normal Incidence Determination of Porous Material Acoustical Properties Based 703 on the Transfer Matrix Method, ASTM International (2019).

DOI: 10.1520/e2611-19