Sound absorption and transmission loss of 3D printed wood fibre reinforced poly lactic acid with functionally graded perforations

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dc.contributor.authorSailesh, R.
dc.contributor.authorDoddamani, M.
dc.contributor.authorMailan Chinnapandi, L.B.
dc.contributor.authorYuvaraj, L.
dc.contributor.authorPitchaimani, J.
dc.date.accessioned2026-02-04T12:25:35Z
dc.date.issued2024
dc.description.abstractThe effect of wood fibre reinforcement on acoustic properties of 3D printed poly lactic acid samples having varying cross-section perforation and functionally graded spherical perforations is presented. Acoustic characteristics like sound absorption as well as transmission loss are obtained using an impedance tube setup. Results revealed the benefits due to the addition of wood fibres in PLA improved samples’ sound transmission loss characteristics significantly. The sound absorption curve peaks shifted to low-frequency regions which are favourable to living beings. The material can be used in acoustic insulation for structural and transportation applications, especially where eco-friendliness and aesthetics are of major concern. © 2023 Informa UK Limited, trading as Taylor & Francis Group.
dc.identifier.citationWood Material Science and Engineering, 2024, 19, 3, pp. 615-626
dc.identifier.issn17480272
dc.identifier.urihttps://doi.org/10.1080/17480272.2023.2286446
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/21474
dc.publisherTaylor and Francis Ltd.
dc.subject3D printing
dc.subjectAcoustic wave absorption
dc.subjectArchitectural acoustics
dc.subjectLactic acid
dc.subjectMaterials handling
dc.subjectReinforcement
dc.subjectSound insulating materials
dc.subjectWave transmission
dc.subject3-D printing
dc.subject3D-printing
dc.subjectAbsorption loss
dc.subjectFG perforation
dc.subjectPLA
dc.subjectSA coefficient
dc.subjectSound absorption
dc.subjectSound transmission
dc.subjectTapered perforation
dc.subjectWoodfiber
dc.subjectAcoustic impedance
dc.subjectCharacteristics
dc.subjectLactic Acid
dc.subjectMaterials Handling
dc.subjectPerforations
dc.subjectSound Absorption
dc.subjectTransmission
dc.subjectWood
dc.titleSound absorption and transmission loss of 3D printed wood fibre reinforced poly lactic acid with functionally graded perforations

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