Modelling of flawed riveted structures for EC inspection in aeronautics

S. Paillard , G. Pichenot (1) , Yahya Choua (2) , Yann Le Bihan (2) , Marc Lambert (3) , Hubert Voillaume (4) , N. Dominguez

1 LIST (CEA) - Laboratoire d'Intégration des Systèmes et des Technologies
2 LGEP - Laboratoire de génie électrique de Paris
3 DRE - Département de Recherche en Electromagnétisme ; EMG - Département Electromagnétisme - L2S
4 EADS CCR - DCR/SE /IND

Within the framework of a collaborative project between CEA and EADS, a semi-analytical model based on a Volume Integral Method (VIM) has been developed so as to simulate the Eddy Current (EC) inspection of riveted structures in aeronautics. The modeling is the one of a layered planar structure with a flaw located nearby a fastener. The VIM involving dyadic Green's functions is considered, a fastener and a flaw being introduced as a variation of conductivity in a stack of slabs. This semi-analytical approach is compared to a Finite-Element one (FE) developed by LGEP and is validated with experimental data acquired on an aeronautical configuration.

Domaines: Sciences de l'ingénieur [physics]

S. Paillard, G. Pichenot, Yahya Choua, Yann Le Bihan, Marc Lambert, et al.. Modelling of flawed riveted structures for EC inspection in aeronautics. A. Tamburrino; Y. Melikhov; Z. Chen; L. Upda. Electromagnetic Non–Destructive Evaluation, 31, IOS Press, pp.217-224, 2008, Studies in Applied Electromagnetics and Mechanics, 978-1-58603-896-0. ⟨10.3233/978-1-58603-896-0-217⟩. ⟨hal-00761552⟩