Jute and Luffa Fiber-Reinforced Biocomposites: Effects of Sample Thickness and Fiber/Resin Ratio on Sound Absorption and Transmission Loss Performance

The 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 sample thickness fiber/resin ratio on performance jute luffa biocomposites. For this purpose, composite samples with different thicknesses fiber/epoxy ratios are manufactured their absorption coefficients (SACs) transmission losses (TLs) determined impedance tube method. Thickness-dependent tendencies SACs TLs for low-, medium-, high-frequency ranges identified. effect as a function frequency determined. Furthermore, some fiber-based predicted mathematical models theoretical experimental results compared evaluated.