Eur. Phys. J. Appl. Phys.
Volume 81, Number 1, January 2018
|Number of page(s)||6|
|Section||Nanomaterials and Nanotechnologies|
|Published online||13 March 2018|
Application of finite elements heterogeneous multi-scale method to eddy currents non destructive testing of carbon composites material
Université de Bordj Bou Arréridj,
2 IREENA-IUT, CRTT, 37 Boulevard de l'Université, BP 406, 44602 Saint Nazaire Cedex, France
3 Laboratoire LEC, Université Constantine1, Route Ain Elbey, 25000 Constantine, Algeria
* e-mail: email@example.com
Received in final form: 26 July 2017
Accepted: 6 November 2017
Published online: 13 March 2018
In this present paper, a simulation of eddy current non-destructive testing (EC NDT) on unidirectional carbon fiber reinforced polymer is performed; for this magneto-dynamic formulation in term of magnetic vector potential is solved using finite element heterogeneous multi-scale method (FE HMM). FE HMM has as goal to compute the homogenized solution without calculating the homogenized tensor explicitly, the solution is based only on the physical characteristic known in micro domain. This feature is well adapted to EC NDT to evaluate defect in carbon composite material in microscopic scale, where the defect detection is performed by coil impedance measurement; the measurement value is intimately linked to material characteristic in microscopic level. Based on this, our model can handle different defects such as: cracks, inclusion, internal electrical conductivity changes, heterogeneities, etc. The simulation results were compared with the solution obtained with homogenized material using mixture law, a good agreement was found.
© EDP Sciences, 2018
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