Abstract
Theoretical and experimental studies of sound transmission loss across a clamped double-laminated composite plate filled with poroelastic material are formulated. Biot’s theory is employed to describe wave propagation in elastic porous media. The two face composite plates are modeled as classical thin plates. By using the modal superposition theory, a double series solution for the sound transmission loss of the structure is obtained with the help of the Galerkin method. The analytical model is validated against previous experimental results of the diffused sound wave under normal incidence. The numerical results were compared with experimental results across three structural groups (the core density, the skin thickness and the core dimension). Thereby, the role of the component material is assessed to the sound insulation capacity of the composite sandwich plate.
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This research is funded by the Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number: 107.02-2018.07.
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Thinh, T.I., Thanh, P.N. (2021). Theoretical and Experimental Study of Sound Transmission Loss Across Finite Clamped Composite Sandwich Plates. In: Sattler, KU., Nguyen, D.C., Vu, N.P., Long, B.T., Puta, H. (eds) Advances in Engineering Research and Application. ICERA 2020. Lecture Notes in Networks and Systems, vol 178. Springer, Cham. https://doi.org/10.1007/978-3-030-64719-3_90
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DOI: https://doi.org/10.1007/978-3-030-64719-3_90
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