Advances in modelling the ECT of U-bend steam generator tubes based on the boundary element method

Edouard Demaldent (1) , Christophe Reboud (1) , Frédéric Nozais (2) , Thierry Sollier (3) , Cattiaux Gérard (3)

1 LSME (CEA, LIST) - Laboratoire de Simulation et de Modélisation Électromagnétique (CEA, LIST)
2 LIC (CEA, LIST) - Laboratoire Instrumentation et Capteurs (CEA, LIST)
3 IRSN/PSN-EXP/SES - Service d'Expertise des équipements et des Structures

The modelling of the eddy current testing of U-bend steam generator tubes is a valuable tool for interpreting measured signals due to geometric distortions that can arise during the bending process. Especially, the decentred trajectory of the probe into the bending must be taken into account to ensure the accuracy of the simulated signal. As the exact trajectory is a priori not known, we propose an efficient way to build a database of the simulated signal for all possible positions of the probe into the tube, based on an adaptation of the boundary element method that is developed at CEA LIST.

Domaines: Modélisation et simulation; Electromagnétisme

Edouard Demaldent, Christophe Reboud, Frédéric Nozais, Thierry Sollier, Cattiaux Gérard. Advances in modelling the ECT of U-bend steam generator tubes based on the boundary element method. Dominique Lesselier; Christophe Reboud. Electromagnetic Non-Destructive Evaluation (XXI), 43, IOS Press, pp.167-174, 2018, Studies in Applied Electromagnetics and Mechanics, ⟨10.3233/978-1-61499-836-5-167⟩. ⟨cea-04252215⟩