Modal Analysis of Acoustic Emission Signals from Artificial and Fatigue Crack Sources in Aerospace Grade Steel

Rhys Pullin; Karen M. Holford; M.G. Baxter

doi:10.4028/www.scientific.net/KEM.293-294.217

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 293-294Modal Analysis of Acoustic Emission Signals from...

Modal Analysis of Acoustic Emission Signals from Artificial and Fatigue Crack Sources in Aerospace Grade Steel

Abstract:

Current analysis of Acoustic Emission (AE) signals is dominated by waveform parameter assessment, such as amplitude, rise-time, absolute energy, initiation frequency etc. whilst the actual waveform collected is often ignored. This paper explores the dispersive behaviour of Lamb Wave propagation as a means of estimating source to sensor distance and source orientation from collected waveforms.

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Key Engineering Materials (Volumes 293-294)

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217-226

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.293-294.217

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Online since:

September 2005

Authors:

Rhys Pullin, Karen M. Holford, M.G. Baxter

Keywords:

Acoustic Emission (AE), Modal Analysis

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