Detection of vertical and horizontal crack in steel structure using a circular eddy current testing probe

Nurul A'in, Nadzri and Mohd Mawardi, Saari and Mohd Aufa Hadi Putera, Zaini and Zulkifly, Ab Aziz (2024) Detection of vertical and horizontal crack in steel structure using a circular eddy current testing probe. In: AIP Conference Proceedings. AIP Conference Proceedings; 5th International Conference on Automotive Innovation and Green Energy Vehicle 2022, AiGEV 2022 , 5 - 6 December 2022 , Langkawi, Malaysia. pp. 1-11., 2998 (1). ISSN 0094-243X (Published)

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Abstract

Cracks in steel structures play a significant role in compromising the safety and reliability of facilities that incorporate steel, such as buildings, machinery, and bridges. Fractures may expand and result in complete breakage of the component, posing a significant risk to the life of the component and possibly resulting in injury or death. Fragile metal fractures occur with no apparent warning. The revelation of any cracks involves intensive steps to prevent them before they spread to the point of fracturing quality. The invention of an eddy current technique probe based on the investigation and extensive analysis of fluxgate sensors to investigate the presence of horizontal and vertical cracks in metal plates is presented in this paper. Two fluxgate sensors detect the magnetic response caused by the eddy current, which is generated by an excitation coil in the sample plates. The fluxgate probe is utilized to do line scans and 2-D map scans above the slits’ placements, and the results are classified to the depth of artificial slits. Using several frequencies and a 70-mA excitation current, the probe detected slits as small as 2 mm deep and 1 mm wide. The slit orientations perpendicular and parallel to the fluxgate sensors’ differential direction were observed, and their calculated lengths displayed a significant correlation with the physical gap lengths.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Steel structures; Eddy Current Technique (ECT); Eddy Current Testing
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division:	Institute of Postgraduate Studies Faculty of Electrical and Electronic Engineering Technology
Depositing User:	Dr. Mohd Mawardi Saari
Date Deposited:	23 Apr 2025 03:46
Last Modified:	23 Apr 2025 03:46
URI:	http://umpir.ump.edu.my/id/eprint/44385
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