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Journal ArticleDOI

Crack detection and sizing technique by ultrasonic and electromagnetic methods

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TLDR
In this paper, a 256-channel array system has been developed for the inspection of weldment of BWR internal components such as core shrouds and the TOFD crack sizing technique also can be applied using this system.
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This article is published in Nuclear Engineering and Design.The article was published on 2001-06-01. It has received 77 citations till now. The article focuses on the topics: Phased array ultrasonics & Phased array.

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Citations
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Journal ArticleDOI

Ultrasonic imaging of defects in coarse-grained steels with the decomposition of the time reversal operator.

TL;DR: An analysis of the singular values of different waves contained in the data acquisition facilitates the identification of the subspace associated with the surface guided waves for filtering operations, which improves the signal-to-noise ratio.
Journal ArticleDOI

Model-driven fatigue crack characterization and growth prediction: A two-step, 3-D fatigue damage modeling framework for structural health monitoring

TL;DR: In this article, a two-step modeling framework is proposed to accurately characterize and continuously monitor fatigue damage from its embryonic initiation, through progressive growth to formation of macroscopic crack.
Journal ArticleDOI

Laser-Generation Based Imaging of Ultrasonic Wave Propagation on Welded Steel Plates and Its Application to Defect Detection

TL;DR: In this article, a moving diagram of wave propagation from the fixed point was obtained directly from the collected signals, and the position-time-amplitude maps (B-scope images) were reconstructed from the moving diagram along some lines perpendicular to the defect.
Journal ArticleDOI

Scattering of the Fundamental Shear Guided Wave From a Surface-Breaking Crack in Plate-Like Structures

TL;DR: A study of scattering from small cracks in a thin-walled (<12 mm) section with an incident plane SH0 guided wave at higher frequencies but remaining below the SH1 cutoff is presented here using quasi-static approximations.
Journal ArticleDOI

Influence of crack length on crack depth measurement by an alternating current potential drop technique

TL;DR: In this article, an alternating current potential drop (ACPD) technique is used for sizing the depth of surface cracks in metallic components, especially in low conducting materials such as austenitic stainless steel (SS).
References
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Journal ArticleDOI

Improved ultrasonic testing by phased array technique and its application

TL;DR: In this article, two examples of phased array application were conducted in order to establish the availability of this technique as an actual NDT technique, and it was recognized that both types of scanning mode had the capability for defect detection and successful estimation of the defect size.
Journal ArticleDOI

Availability study of a phased array ultrasonic technique

TL;DR: In this paper, a technique d'essai par ultrason avec reseau en phase peut etre applicable a des centrales nucleaires for le controle electrique du faisceau d'electron and l'affichage image «B scope» en temps reel.
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