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Acoustic Performance of a Damaged Araldite Plate: Experimental and Numerical Solutions
Aysegul Altuntas Miyanyedi and Mehmet Yetmez
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DOI:10.17265/1934-7359/2025.11.004
Department of Mechanical Engineering, Zonguldak Bulent Ecevit University, Zonguldak 67100, Turkey
While Araldite adhesives are extensively used in aerospace, maritime, and construction applications and have been well studied for their mechanical properties, their acoustic behavior remains largely unexplored. This study investigates the sound absorption of 4 mm and 6 mm Araldite plates under undamaged and damaged conditions (circular, square, triangular damages). Measurements were performed using an ASTM E2611-09 impedance tube in the 100–1000 Hz and 1000–20000 Hz ranges, and results were validated with FEM simulations in COMSOL Multiphysics. Results show that damage has little to no effect on the sound absorption coefficient, with maximum values below 0.26. FEM predictions agreed well with experiments, achieving over 90% accuracy in the mid-frequency range. These findings indicate that Araldite plates’ acoustic performance is largely insensitive to small geometrical damage, providing baseline data for marine and structural applications.
Araldite, sound absorption coefficient, damage geometry, COMSOL.
Journal of Civil Engineering and Architecture 19 (2025) 538-546
doi: 10.17265/1934-7359/2025.11.004
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