Quantitative Relationship between Strain and Acoustic Emission Response in Monitoring Fatigue Damage

Abstract

This study was carried out to investigate the relationship between the strain and acoustic emission (AE) signals, thus, to confirm the capability of AE technique to monitor the fatigue failure mechanism of a steel component. To achieve this goal, strain and AE signals were captured on the steel specimen during the cyclic fatigue test. Both signals were collected using specific data acquisition system by attaching the strain gauge and AE piezoelectric transducer simultaneously at the specimen during the test. The stress loading used for the test was set at 600 MPa, and the specimens were fabricated using the SAE 1045 carbon steel. The related parameters for both signals were determined at every 2000 seconds until the specimen failed. It was found that a meaningful correlation of all parameters, i.e. amplitude, kurtosis and energy, was established. Finally, all AE parameters are correlated with the damage values, which have been estimated using the Coffin-Manson model. Hence, it was suggested that the AE technique can be used as a monitoring tool for fatigue failure mechanism in a steel component.

Enhancing the acoustic emission technique using fuzzy artificial bee colony-based deep learning for characterizing selective laser melted AlSi10Mg specimens

“….) is quite complex (Mohammad et al, 2012(Mohammad et al, , 2013Shan et al, 2020;Wayne et al, n.d.). Acoustic emission (AE) reflects various stages of material deterioration, including initiation, crack growth, and fracture (Eberhardt et al, 1997;Goszczy nska, 2014;Kalteremidou et al, 2021;Vidya Sagar et al, 2013).…”

Monitoring Fatigue Damage of Modular Bridge Expansion Joints Using Piezoceramic Transducers

“…Monitoring the fatigue damage of the civil engineering structures has been actively investigated [ 6 , 7 , 8 ]. The current methods for monitoring the fatigue damage mainly include Barkhausen noise measurements [ 9 , 10 , 11 , 12 ], X-ray tomography [ 13 , 14 , 15 , 16 ], metal magnetic memory (MMM) testing method [ 17 , 18 , 19 , 20 , 21 ], acoustic emission (AE) [ 22 , 23 , 24 , 25 ], ultrasonic and nonlinear ultrasonic techniques [ 26 , 27 , 28 , 29 , 30 ], among others. Barkhausen noise measurements were used to evaluate fatigue damage of engineering structural steel structures [ 9 ].…”