Sound Radiation Characteristics for Structural Damage Identification
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.
Young Won Chang, Nack J. Kim and Chong Soo Lee
U. Lee et al., "Sound Radiation Characteristics for Structural Damage Identification", Advanced Materials Research, Vols. 26-28, pp. 7-10, 2007