Three-Dimensional Identification of Crack Location in Conducting Slabs Using Wavelets

Abd-El-Hafiz, Salwa K.; Adly, A.A.

doi:10.1109/tmag.2013.2243413

Cited by 1 publication

(2 citation statements)

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“…highlight the ability of the proposed approach to cancel out the device response and, thus, reconstruct a very close three dimensional image of the assumed crack. Moreover, crack dimensions do not necessarily have to be in quanta of the FT discretization grid unlike for the case of using the wavelets approach (refer, for instance, to [9]). …”

Section: The Proposed Approachmentioning

confidence: 99%

“…Among those techniques, stray magnetic field monitoring, as a result of impressed current crack perturbation, has proven to be successful [6,7]. Recently, the wavelets approach has been utilized in surface crack detection using impressed current differential measurements [8,9]. In this approach, semiorthogonal compactly supported spline wavelets were used to efficiently solve the resulting 2D Fredholm integral equation of the first kind and, finally, identify the 3D spatial location of cracks in conducting slabs of finite thicknesses.…”

Section: Introductionmentioning

confidence: 99%

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A Deconvolution Approach to the Three Dimensional Identification of Cracks in Magnetic Slabs

Adly

Abd-El-Hafiz

2017

IJECE

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Nondestructive assessment of cracks in metallic parts has always been a topic of industrial interest. In the past, different approaches have been proposed to assess such cracks. Recently, semi-orthogonal compactly supported spline wavelets were utilized to efficiently identify the 3D spatial location of cracks in conducting slabs of finite thicknesses. Within this proposed approach a horizontally oriented field sensor is employed on top of a magnetic slab subject to uniform horizontal magnetic field. In this paper the 3D spatial identification of cracks in conducting slabs is carried out through the Fourier transform by de-convoluting sensor response. In comparison to the previously adopted approach, the approach proposed in this paper is capable of identifying cracks that span over a relatively larger distance. Details of the crack detection methodology and simulations are given in the paper.

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Section: The Proposed Approachmentioning

confidence: 99%