Evaluation of acoustic attenuation of composite wood panel through nondestructive test

Abstract

The paper presents the experimental results determined by means of nondestructive test concerning the acoustic attenuation of composite panels. The sample panel made of biodegradable materials like solid wood, wood flakes and woven inserts was studied in order to establish its practicable application. Based on ultrasonic wave propagation, the acoustic attenuation of the tested composite panel was determined. The results revealed that the investigated panel recorded a high value of the acoustic attenuation, assumed as a good acoustic insulation.