The paper presents investigation of dynamical window multi-frequency (DWMF) eddy currents algorithm applied to the helical steam generator tubes of FBR to improve the defect detection when the defect is free of sodium or sodium partially fills the volume of the defect. The task is accomplished using large scale three dimensional (3D) finite element (FE) numerical simulations, based on an in-house developed code massive parallelized, that can take into account full circumferential and partial outer tube defects located near or far from the tube support plate.
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2.
ChenZ., ChigusaN., IsakaH. and MiyaK., Data Processing of Corrosion Noise Polluted ECT Signals for Heat Exchanger Tubes of Cu-Ni Alloy, Electromagnetic Nondestructive Evaluation (VIII), Studies in Applied Electromagnetics and Mechanics24 (2004), 128-135.
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MihalacheO., YamaguchiT. and UedaM., Validation of Multifrequency ECT Algorithms for Helical SG tubes of FBR, Electromagnetic Nondestructive Evaluation (XVII)39 (2014), 109-119.
7.
MihalacheO., YamaguchiT. and UedaM., Multi-Frequencies ECT Algorithms for ISI of Ferromagnetic SG Tubes of FBR using FEM Simulations, ISEM 6-9 September 2011, Napoli, Italy, 2011.
8.
YamaguchiT., MihalacheO. and UedaM., A Study of Multi-coils ECT for SG Tubes of FBR using 3D FEM Simulations and Experimental Measurements, Kobe, ISEM 2015.
9.
MihalacheO., YamaguchiT. and UedaM., Large Scale 3D FEM Electromagnetic Simulations and Validations for FBR Steam Generator Tubes, Studies in Applied Electromagnetics and Mechanics, Electromagnetic Nondestructive EvaluationXVI (2012), 94-102.
