Old but not obsolete: Dimensional analysis in nondestructive testing and evaluation

Tamburrino, Antonello; Sardellitti, Alessandro; Milano, Filippo; Mottola, Vincenzo; Laracca, Marco; Ferrigno, Luigi

doi:10.1016/j.ndteint.2023.102977

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…In recent years, this method has attracted considerable interest in many areas. The ECT methods are adopted for structural inspections, as in the case of turbine blades in the aerospace sector [1]- [3], tubes inspection [4]- [7], thickness measurement of laminates or coatings [8]- [10], identification of corrosion damages [11], verification of materials treatment techniques, bolt hole inspections. The relevant interest in ECT techniques for the analysis of the structural degradation status is due to the non-contact, low measurement time and high defect detection sensitivity.…”

Section: Introductionmentioning

confidence: 99%

An Eddy Current Probe for the Detection of Subsuperficial Defects of Any Orientation

Carere,

Sardellitti,

Bernieri

et al. 2024

IEEE Trans. Instrum. Meas.

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The paper introduces a novel 4-coils probe designed for Eddy Current Non-Destructive Testing on conductive materials. The key innovation lies in its capability to identify small surface and subsurface cracks regardless of their orientation. This is achieved through a suitable probe developed using two pairs of exciting coils that allow to generate two orthogonal magnetic fields. Using two excitation currents with an amplitude modulation approach, a rotation of the eddy currents induced in the conductive sample is obtained. This novel approach ensures effective detection of deep and arbitrarily oriented cracks. Both numerical tests and experimental evaluations were employed to assess the performance of the proposed probe. The probe's effectiveness was particularly observed in detecting a buried crack measuring 5 mm in length, 1 mm in height, and 0.1 mm in thickness at depths up to 3 mm in an aluminum plate. The results demonstrated the robustness of the probe's detection capability, affirming its potential as a reliable tool for nondestructive testing in industrial applications.

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