Multiple parameters fusion of electromagnetic nondestructive inspection data for evaluation of fatigue damage in steel elements

Issue title: Special Issue on the 18th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering

Guest editors: Sławomir Wiak, Paolo Di Barba and Krzysztof Komeza

Article type: Research Article

Authors: Psuj, Grzegorz

Affiliations: Department of Electrical and Computer Engineering, Faculty of Electrical Engineering, West Pomeranian University of Technology, al. Piastow 17, 70-310, Szczecin, Poland | E-mail: gpsuj@zut.edu.pl

Abstract: The use of electromagnetic nondestructive testing methods to assess damage and fatigue changes is a subject of numerous studies. However, the observed signals are influenced by many factors. Thus, making a proper assessment on the basis of single parameters’ behavior is complicated task. Therefore, in this paper, an approach of multiple parameters fusion for evaluation of damage was presented. The range of material changes in steel sample after successive stages of fatigue process was monitored using Magnetic Barkhausen Noise and AC magnetization method in a selected two-dimensional region. The acquired data was then processed for the need of signals parametrization. The procedures in time, frequency and time-frequency domains were applied. Then the selection of representative features was carried out before the information was combined via multivariate regression. Finally, the obtained function was used to achieve the two-dimensional maps of evaluated damage for successive fatigue periods.

Keywords: Fatigue evaluation, nondestructive evaluation, magnetic Barkhausen noise, AC magnetization method, multi-source data fusion

DOI: 10.3233/JAE-182316

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 57, no. S1, pp. 209-216, 2018