Şanlıtürk, Kenan Y.Genç, GaripKörük, HasanÖzcan, Ahmet Cihan2021-04-102021-04-102021Hasan Koruk, Ahmet Cihan Ozcan, Garip Genc & Kenan Y. Sanliturk (9 April 2021). Jute and Luffa Fiber-Reinforced Biocomposites: Effects of Sample Thickness and Fiber/Resin Ratio on Sound Absorption and Transmission Loss Performance, Journal of Natural Fibers, p. 1-16. DOI: 10.1080/15440478.2021.19078321544-04781544-046Xhttps://doi.org/10.1080/15440478.2021.1907832https://hdl.handle.net/20.500.11779/1470The acoustic properties of natural fiber-reinforced composites should be identified before using these materials in various engineering applications including sound and vibration isolation. This study investigates the effects of sample thickness and fiber/resin ratio on the acoustic performance of jute and luffa fiber-reinforced biocomposites. For this purpose, jute and luffa composite samples with different thicknesses and fiber/epoxy ratios are manufactured and their sound absorption coefficients (SACs) and transmission losses (TLs) are determined using impedance tube method. Thickness-dependent tendencies of the SACs and TLs of jute and luffa composites for low-, medium-, and high-frequency ranges are identified. The effect of fiber/epoxy ratio on the acoustic properties of jute and luffa composites as a function of frequency are determined. Furthermore, the SACs and TLs of some natural fiber-based samples with different thicknesses are predicted using mathematical models and the theoretical and experimental results are compared and evaluated.eninfo:eu-repo/semantics/openAccesshttp://creativecommons.org/publicdomain/zero/1.0/Transmission lossBiocompositesRatioSound absorptionLuffaJuteFfiber/resinArticle10.1080/15440478.2021.19078322-s2.0-85104250921