Paper Title:

Sound Radiation Characteristics for Structural Damage Identification

Periodical Advanced Materials Research (Volumes 26 - 28)
Main Theme Advanced Materials and Processing
Edited by Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages 7-10
DOI 10.4028/www.scientific.net/AMR.26-28.7
Citation Usik Lee et al., 2007, Advanced Materials Research, 26-28, 7
Online since October, 2007
Authors Usik Lee, In Joon Jang, Han Suk Go, Tae Jin Kim
Keywords Cracked Plate, Sound Power, Sound Radiation, Structural Damage Identification
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Abstract

This paper investigates the sound power radiated from a cracked plate. The sound power is obtained by using a lumped parameters model-based acoustics theory and vibration responses obtained by using the finite element method. It is shown that the vibration mode shapes and crack angle are closely related to the sound radiation characteristics, which can be applied to detect damages such as the cracks generated within a structure.