Attenuation of Acoustic Emission Signals in Structural Interfaces

Abstract:

Received acoustic emission (AE) signals are transmitted across structural interfaces in many real-world applications. This paper studies attenuation of the signals across two common structural interfaces. The experimental results indicate that interface has effects on attenuation, which depends on the relative scales of structures. Signal energy is strengthened due to multiple flections of signals on the small-size structure when an interface is constructed by different scales. Thus the received signals are distorted worse than the original signals. So it is a better way to mount sensors on a simple structure with a size as much as a structure incurred AE sources.

• Periodical: Advanced Materials Research (Volume 569)
• Pages: 343-346
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.569.343
• Online since: September 2012
• Authors: Xiang Hong Wang, Hong Wei Hu, Zhi Yong Zhang
• Keywords: Acoustic Emission (AE), Attenuation, Structural Interface

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