Acoustic Emission Waveform Changes for Varying Seeded Defect Sizes

S. Al-Dossary; R.I. Raja Hamzah; D. Mba

doi:10.4028/www.scientific.net/AMR.13-14.427

Paper Titles

More than a Quarterly Century of Acoustic Emission Testing (AT) at TÜV Austria
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Embedded Code Processing for the On-Line Use of User-Developed AE Analysis Routines
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AE-Testing in Potentially Explosive Atmospheres - From the Requirements to an Intrinsically Safe System-Certified Realization
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Continuous AE Monitoring of Structures – Can it Be Both Easy to Use and Effective?
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Use of Advanced A.E. Analysis for Source Discrimination Using Captured Waveforms
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Diagnosis of Artificial Gear Defects on Single Stage Gearbox Using Acoustic Emission
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Damage Monitoring in Cyclic Loaded C/C Woven Composites Using the Acousto-Ultrasonics Approach
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Acoustic Emission Waveform Changes for Varying Seeded Defect Sizes
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Acoustic Emission for the Detection of Shaft-to-Seal Rubbing in Large Power Generation Turbines
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Acoustic Emission Waveform Changes for Varying Seeded Defect Sizes

Abstract:

The investigation reported in this paper was centered on the application of the Acoustic Emissions (AE) technology for characterising the defect sizes on a radially loaded bearing. The aim of this investigation was to ascertain the relationship between the duration of AE transient bursts associated with seeded defects to the actual geometric size of the defect. It is concluded that the geometric defect size can be determined from the AE waveform.