Detection of cracks beneath rivet heads via pulsed eddy current technique

Giguère, J. S. R.; Lepine, B. A.; Dubois, J. M. S.

doi:10.1063/1.1473034

Cited by 15 publications

(6 citation statements)

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“…[34][35][36] The earliest study of PEC for crack detection in layered structures with installed fasteners was conducted by Harrison. 37,38 Giguere et al 39 also studied the detection of cracks beneath rivet heads using the transient EC techniques. Figure 6 shows some experimental results of PEC to test multilayer sample.…”

Section: Pulsed Eddy Currentmentioning

confidence: 99%

Challenges in improving the performance of eddy current testing: Review

Abdalla

Faraj

Samsuri

et al. 2018

Measurement and Control

111

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Eddy current testing plays an important role in numerous industries, particularly in material coating, nuclear and oil and gas. However, the eddy current testing technique still needs to focus on the details of probe structure and its application. This paper presents an overview of eddy current testing technique and the probe structure design factors that affect the accuracy of crack detection. The first part focuses on the development of different types of eddy current testing probes and their advantages and disadvantages. A review of previous studies that examined testing samples, eddy current testing probe structures and a review of factors contributing to eddy current signals is also presented. The second part mainly comprised an in-depth discussion of the lift-off effect with particular consideration of ensuring that defects are correctly measured, and the eddy current testing probes are optimized. Finally, a comprehensive review of previous studies on the application of intelligent eddy current testing crack detection in non destructive eddy current testing is presented.

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Section: Pulsed Eddy Currentmentioning

confidence: 99%

Challenges in improving the performance of eddy current testing: Review

Abdalla

Faraj

Samsuri

et al. 2018

Measurement and Control

111

View full text Add to dashboard Cite

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“…However, it is found that variations of lift-off and inter-layer gap can cause noise which may overwhelm the material loss signature. Giguère et al [23], [24], [25], [26]…”

Section: Transient Eddy Current Experimentsmentioning

confidence: 99%

Transient Eddy Current Response Due to a Subsurface Crack in a Conductive Plate

2006

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“…Moreover, the applied eddy current testing in multilayer structures to evaluate the cracks who they will be in the inner layer is low sensitive than the upper layer due to of the skin thickness effect, although eddy current sensor need to be more efficiency with a ferrite core, thus the electromagnetic field produce by the sensor will be more focus in small area, several studies are used magnetic field as a measurement parameter to detect the cracks such as EC-GMR (Giant Magneto-Resistance) [8][9][10] and EC-Hall effect sensor [11,12] which they need a special excitation coils (complicated system) in addition rotating electromagnetic field EC-GMR which consist tow printed excitation coils to make a the electromagnetic field to be rotated [13], separated function measurement mode is used in previous works [14], this mode has two coils, one for excitation and the other for pick-up, pulsed eddy current technique used for crack detection in layered structures [15][16][17], these methods are used for the detection of crack in deep layers with the existing of the rivets, the rivets are electrically conductive which high possibly influence in the quality of detection, to take into account the rivets effect the sensors should be calibrate.…”

Section: Introductionmentioning

confidence: 99%

An Eddy Current Nondestructive Method for Crack Detection in Multilayer Riveted Structures

Abdou¹,

Safer²,

Bouchala³

et al. 2019

I2M

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It is a challenging task to detect the hidden cracks in multilayer riveted structures in a nondestructive manner. This paper puts forward an eddy current nondestructive method for crack detection in such structures based on the electric conductivity of the rivets. Specifically, an eddy current sensor was designed with a ferrite core coil to evaluate the surface and inner defects of different layers. The magnetic phenomena during the detection process was simulated based on the magnetic potential and the scalar electrical potential, and the magnetic potential vector was solved by finite-element method. The proposed method was compared with the eddy current detection method without considering rivet conductivity through an experiment on a three-layer riveted aluminum structure. The length and position of each defect on each layer were changed in the experiment. The results show that the proposed method achieved better accuracy than the contrastive method, and its sensitivity depends on two issues: the position of the defect relative to the separation of the layers and the length of the defect relative to the length of the rivet head. The research results are of great significance for nondestructive testing of multilayer riveted structures in many fields.

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Detection of cracks beneath rivet heads via pulsed eddy current technique

Cited by 15 publications

References 0 publications

Challenges in improving the performance of eddy current testing: Review

Challenges in improving the performance of eddy current testing: Review

Transient Eddy Current Response Due to a Subsurface Crack in a Conductive Plate

An Eddy Current Nondestructive Method for Crack Detection in Multilayer Riveted Structures

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