2-D Modeling of Rosen-Type Piezoelectric Transformer by Means of a Polynomial Approach

Autor: Jean-Etienne Lefebvre, Mohamed Rguiti, Derandraibe Jeannot Falimiaramanana, F. E. Ratolojanahary, Lahoucine El Maimouni

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Institute of Electrical and Electronics Engineers, 2020, 67 (8), pp.1701-1714. ⟨10.1109/TUFFC.2020.2975647⟩
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2020, 67 (8), pp.1701-1714. ⟨10.1109/TUFFC.2020.2975647⟩

International audience; A 2-D semianalytical model using the Legendre polynomial approach was applied for modeling the piezoelectric transformer (PT). In the model, the mechanical displacements and the electric potential were expanded in a double ser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::774be801c22cb0d58d64578fc87845e9
https://hal-uphf.archives-ouvertes.fr/hal-03480267

Guided wave propagation in functionally graded cylindrical structures with sector cross-sections

Autor: Zhang Xiao-ming, Jean-Etienne Lefebvre, Zhang Bo, Yu Jian-gong, Ming Pingmei, Xu Weijiang

Publikováno v: Mathematics and Mechanics of Solids
Mathematics and Mechanics of Solids, SAGE Publications, 2019, 24 (2), pp.434-447. ⟨10.1177/1081286517742433⟩
Mathematics and Mechanics of Solids, 2019, 24 (2), pp.434-447. ⟨10.1177/1081286517742433⟩

JIF=2.040; International audience; The differential equations governing guided waves in functionally graded cylindrical structures with sector cross-sections are solved by introducing the double orthogonal polynomial series method into the cylindrica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::220a5c9bb3dfd06d3ffc3f0492b15115
https://hal.archives-ouvertes.fr/hal-03153238

Characterization of Micrometric and Localised Residual Stresses on Amorphous Materials Using Dispersion of Surface Acoustic Waves

Autor: Julien Deboucq, Mohammadi Ouaftouh, Marc Duquennoy, Frédéric Jenot, Jean Etienne Lefebvre, Mohamed Ourak

Publikováno v: Advanced Materials Research
Advanced Materials Research, 2014, 996, pp.392-397. ⟨10.4028/www.scientific.net/AMR.996.392⟩

9th European Conference on Residual Stresses, ECRS-9, Troyes, France, july 7-10, 2014, session 3.5 - Acoustics and Electromagnetics, paper 194; International audience; For amorphous materials such as glass, the fragility of the material can be limite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c53af4dc0422ff4f1f95b35ef8c7b758
https://doi.org/10.4028/www.scientific.net/amr.996.392

Modeling of MEMS Resonator Piezoelectric Disc Partially Covered with Electrodes

Autor: Jean-Etienne Lefebvre, T. Gryba, Mohamed Rguiti, F. E. Ratolojanahary, L. Elmaimouni, I. Naciri

Publikováno v: American Journal of Mechanics and Applications
American Journal of Mechanics and Applications, 2016, 4 (1), pp.1-9. ⟨10.11648/j.ajma.20160401.11⟩

International audience; The Legendre polynomial method has been extended to the modeling of MEMS resonator disc partially covered with electrodes. The disc has been divided into two areas: one with electrodes and the other without electrodes. For eac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12dc4607d2f39674e87b7edba47be9c3
http://hdl.handle.net/20.500.12210/80524

A polynomial approach to the analysis of guided waves in anisotropic cylinders of infinite length

Autor: V. Zhang, T. Gryba, L. Elmaimouni, Jean-Etienne Lefebvre

Publikováno v: Wave Motion
Wave Motion, 2005, 42, pp.177-189
Wave Motion, Elsevier, 2005, 42, pp.177-189

We present a polynomial approach for determining the guided waves in homogeneous infinitely long cylinders utilizing elastic materials of cylindrical anisotropy. The formulation is based on linear three-dimensional elasticity. The displacement compon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae86f526d1fcc26cb85ddbec90f25f4e
https://doi.org/10.1016/j.wavemoti.2005.01.005