International Journal of Advanced Studies in Computer Science and Engineering

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Characterization of cracks in nonlinear ferromagnetique plate by eddy current testing


Affiliations
1 Laboratoire de Physique des Matériaux, Université de Laghouat, BP 37G, Laghouat 03000, Algeria
2 Laboratory of Development in Mechanics and Materials (LDMM), University of Djelfa, PB 3117, Djelfa, Algeria
3 IREENA-IUT, University of Nantes - UNAM, CRTT, BP 406, 44602 Saint-Nazaire cedex, France

In this work, we aim to determine the dimensions of an axisymmetric crack contained in a non-linear magnetic material. First, we begin to characterize the magnetic material from a modeling of the direct magnetodynamic problem by 2D finite element of the system (magnetic material + sensor) and solved by the Newton Rapheson method. FEMM(Finite Element Method Magnetics, an open source software, was used to validate the model).This direct model is then inverted by a simplex algorithm to determine the dimensions of the crack.
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Authors

Aldjia Chaalani
Laboratoire de Physique des Matériaux, Université de Laghouat, BP 37G, Laghouat 03000, Algeria
Dahmane Hachi
Laboratory of Development in Mechanics and Materials (LDMM), University of Djelfa, PB 3117, Djelfa, Algeria
Bachir Helifa
Laboratoire de Physique des Matériaux, Université de Laghouat, BP 37G, Laghouat 03000, Algeria
Mohammed Naidjate
Laboratoire de Physique des Matériaux, Université de Laghouat, BP 37G, Laghouat 03000, Algeria
Iben Khaldoun Lefkaier
Laboratoire de Physique des Matériaux, Université de Laghouat, BP 37G, Laghouat 03000, Algeria
Mouloud Feliachi
IREENA-IUT, University of Nantes - UNAM, CRTT, BP 406, 44602 Saint-Nazaire cedex, France

Abstract


In this work, we aim to determine the dimensions of an axisymmetric crack contained in a non-linear magnetic material. First, we begin to characterize the magnetic material from a modeling of the direct magnetodynamic problem by 2D finite element of the system (magnetic material + sensor) and solved by the Newton Rapheson method. FEMM(Finite Element Method Magnetics, an open source software, was used to validate the model).This direct model is then inverted by a simplex algorithm to determine the dimensions of the crack.