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Nabil M'ZALI
Titre	Doctorant
Equipe	Outils et Méthodes Numériques
Adresse	Université de LILLE Avenue Paul langevin 59655 VILLENEUVE-D'ASCQ
Téléphone	+33 (0)3-XX-XX-XX-XX
Email	nabil.m-zali@univ-lille.fr
Publications

International Journals
[1] Determination of stress dependent magnetostriction from a macroscopic magneto-mechanical model and experimental magnetization curves Journal of Magnetism and Magnetic Materials (JMMM), Vol. 500, 04/2020, URL, Abstract M'ZALI Nabil, MARTIN Floran, AYDIN Ugur, BELAHCEN Anouar, BENABOU Abdelkader, HENNERON Thomas
In this paper, we propose a method to identify the magnetostrictive behavior of electrical steel sheet submitted to a mechanical loading. The technique relies on the use of a magneto-mechanical model including the magnetostrictive phenomenon, namely the anhysteretic Jiles-Atherton-Sablik (JAS) model, and experimental macroscopic stress dependent magnetization curves. The method is illustrated with measured magnetization curves of a non-oriented (NO) electrical steel sheet under different stresses. Furthermore, the influence of a bi-axial mechanical loading on the magnetostrictive behavior is analyzed with the help of an equivalent stress.
[2] Finite-Element Modeling of Magnetic Properties Degradation Due to Plastic Deformation IEEE Transactions on Magnetics, Vol. 56, N°. 2, 02/2020, URL, Abstract M'ZALI Nabil, MARTIN Floran, SUNDARIA Ravi, HENNERON Thomas, BENABOU Abdelkader, BELAHCEN Anouar
In this article, the anhysteretic Sablik model is identified from measurements and implemented in a finite-element (FE) code. The model takes into account the effect of the plastic deformation through the dislocation density, and thus, enables to account for the degradation of the magnetic properties. A new model for magnetostriction is proposed and implemented in the Sablik model. Experimental data are used to identify the parameters of both Sablik model and proposed magnetostriction. Furthermore, the mechanical punching process of an electrical steel sheet is simulated in view of evaluating the plastic strain distribution near the punched edge. Based on the Sablik model and the simulated plastic strain, FE simulations are carried out on a steel sheet and a cage induction machine. The effect of the punching process on the distribution of magnetic-flux density and the magnetization current is analyzed.
International Conferences and Symposiums
[1] Finite Element Analysis of a Magneto-mechanical Coupling Due to Punching Process in Electrical Steel Sheet CEFC 2020, Piza, Italy, 11/2020 M'ZALI Nabil, HENNERON Thomas, BENABOU Abdelkader, MARTIN Floran, BELAHCEN Anouar

[2] Determination of stress dependent magnetostriction from a macroscopic magneto-mechanical model and experimental magnetization curves SMM 2019, Poznan, Poland, 09/2019 M'ZALI Nabil, MARTIN Floran, AYDIN Ugur, BELAHCEN Anouar, BENABOU Abdelkader, HENNERON Thomas

[3] Finite Element Modeling of Magnetic Properties Degradation Due to Plastic Deformation COMPUMAG 2019, Paris, France, 07/2019, Abstract M'ZALI Nabil, HENNERON Thomas, BENABOU Abdelkader, MARTIN Floran, BELAHCEN Anouar, SUNDARIA Ravi
In this work a simulation of the effect of punching process on the magnetic properties of electromagnetic device is presented. The anhysteretic Sablik model is identified from measurements and implemented in a finite element code. A new model for magnetostriction is proposed. A mechanical punching process is simulated using the software ABAQUS, the plastic strain distribution near the punching edge is evaluated. The effect of punching process on the distribution of magnetic flux density and the magnetization current in an induction machine is analyzed.