On the Reproducibility of Transducer Coupling for Acoustic Emission Testing

James J. Hensman; C.V. Cristodaro; Gareth Pierce; Keith Worden

doi:10.4028/www.scientific.net/AMR.13-14.117

Paper Titles

AE Sensor Calibration for Out-of-Plane and In-Plane Displacement Sensitivity
p.91

Acoustic Emission Detection Using a Novel Fibre Optic Sensor
p.99

Cutting Process Monitoring by Means of Acoustic Emission Method; Part I - New Approach of Acoustic Emission Sensor; Part II - Transformation of Acoustic Emission into Audible Sound
p.105

Development of High-Temperature Acoustic Emission Sensor Using Aluminium Nitrade Thin Film
p.111

On the Reproducibility of Transducer Coupling for Acoustic Emission Testing
p.117

Detection of Corrosion Damage on Pressure Equipment with Acoustic Emission
p.127

AE Testing of Refinery Structures
p.133

Investigation of Fatigue Crack Growth on Material for Reactor Pressure Vessel by Acoustic Emission
p.139

Acoustic Emission during Fatigue Testing of Pressure Vessels
p.147

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 13-14On the Reproducibility of Transducer Coupling for...

On the Reproducibility of Transducer Coupling for Acoustic Emission Testing

Abstract:

An acoustic emission test was simulated using a three point bend specimen and an artificial AE source. Waveform data was recorded as the sample was cyclically loaded in three point bending, and the cross correlation coefficient of the waveforms was used to measure the repeatability of the test. Results were twofold: the stress state of a specimen affects the ultrasonic propagation therein; and the coupling condition of a transducer may not remain constant during a test.