F. Najar, H. Smaoui, Internal and combination resonances in variable cross-section arched microbeams for bifurcation-based chaos mass sensing, Nonlinear Dynamics, Accepted, 2025. https://doi.org/10.1007/s11071-025-11831-8
S. Abdelkhalek, F. Najar, A systematic finite element procedure for flexoelectric piezoelectric nanobeams using the asymptotic numerical method, European Journal of Mechanics / A Solids, 113 (2025) 105679. https://doi.org/10.1016/j.euromechsol.2025.105679
F. Najar, M. Ghommem, T. Rabenimanana, M. Hemid, V. Walter, N. Kacem, Differential capacitive mass sensing based on mode localization in coupled microbeam arrays, Mechanical Systems and Signal Processing, 220, 111648, 2024. https://doi.org/10.1016/j.ymssp.2024.111648
E. Zaouali, F. Najar, N. Kacem, Nonlinear dynamics of a Double Pendulum Energy Harvesting device for Continuously rotating systems, Physica Scripta, 99, 065273, 2024. https://doi.org/10.1088/1402-4896/ad4b65
K. Alluhydan, F. Najar, A. Abdelkefi, Insights on the performance and dynamical characteristics of piezoelectric energy harvesters with dissipative viscoelastic impacts, Nonlinear Dynamics, 112(15), 13027-13046, 2024. https://doi.org/10.1007/s11071-024-09737-y
Ghozlane, M., Najar, F. Nonlinear analysis of a floating offshore wind turbine with internal resonances. Nonlinear Dynamics, 112, 1729–1757 (2024). https://doi.org/10.1007/s11071-023-09120-3
B. Alattar, M. Ghommem, A. Elhady, F. Najar, and E. M. Abdel-Rahman. Tracking of bifurcations and hysteresis in electrostatically actuated resonators by motion-induced current. Mechanical Systems and Signal Processing, 204 (2023): 110808. DOI:10.1016/j.ymssp.2023.110808
H. M. Ouakad, F. Najar, and N. Kacem. On the Structural Behavior of MEMS Shallow Arch under Combined Effects of In-Plane Parallel Fields and Out-of-Plane Fringing-Fields. In Actuators, vol. 12, no. 10, p. 374. MDPI, 2023. DOI:10.3390/act12100374
A. Alneamy, H. Samaali and F. Najar, Electrostatic Energy Harvesting of Kinetic Motions Using a MEMS Device and a Bennet Doubler Conditioning Circuit, IEEE Instrumentation & Measurement Magazine, 26(3), 14-20, 2023. 10.1109/MIM.2023.10121408.
M.A. Ben Hassena, M. Ghommem, A. Aly, M. Hamdan, F. Najar, Design and performance analysis of a novel displacement-based temperature sensor, Technisches Messenthis, 90(2), 113–126, 2023. https://doi.org/10.1515/teme-2022-0104
F. Moalla, S. Mehrez, F. Najar, Multi-body musculoskeletal dynamic model of the human trunk based on an experimental approach, Archive of Applied Mechanics, 93(3), 1201–1215, 2023. https://doi.org/10.1007/s00419-022-02323-x
F. Najar, M. Ghommem, S. Kocer, A. Elhady, E. M. Abdel-Rahman, Detection Methods for Multi-Modal Inertial Gas Sensors. Sensors 22, 9688, 2022. https://doi.org/10.3390/s22249688
T. Rabenimanana, F. Najar, M. Ghommem, V. Walter, N. Kacem: On the equivalence between mass perturbation and DC voltage bias in coupled MEMS resonators: theoretical and experimental investigation, Journal of Applied Physics, 132, 024502, 2022. https://doi.org/10.1063/5.0097377
E. Zaouali, F. Najar, N. Kacem, E. Foltete: Pendulum-based embedded energy harvester for rotating systems, Mechanical Systems and Signal Processing, 180(2022), 109415, 2022. https://doi.org/10.1016/j.ymssp.2022.109415
F. Najar, H. M. Ouakad, A. Ramini, N. Alcheikh, M.I. Younis, Parametric resonance of bi-directional axial loads shallow arch microresonators, Journal of Micromechanics and Microengineering, 32:054004, 2022. https://doi.org/10.1088/1361-6439/ac5d63
M. Ghommem, V. Puzyrev, R. Sabouni, F. Najar: Deep learning for gas sensing using MOFs coated weakly-coupled microbeams, Applied Mathematical Modelling, 105:711-728, 2022. https://doi.org/10.1016/j.apm.2022.01.008
K. Mrabet, E. Zaouali, F. Najar: Internal resonance and nonlinear dynamics of a dielectric elastomer circular membrane, International Journal of Solids and Structures, 236–237, 111338, 2022. https://doi.org/10.1016/j.ijsolstr.2021.111338
S. Baroudi, H. Samaali, F. Najar: Energy harvesting using a clamped–clamped piezoelectric-flexoelectric beam, Journal of Physics D: Applied Physics, 54:415501, DOI:10.1088/1361-6463/ac14f2, 2021.
M. A. Ben Hassena, H. Samaali, H. M. Ouakad, F. Najar: 2D electrostatic energy harvesting device using a single shallow arched microbeam, International Journal of Non-Linear Mechanics, 132:103700, 2021. https://doi.org/10.1016/j.ijnonlinmec.2021.103700
F. Najar, M. Ghommem, E. Abdel-Rahman: Arch microbeam bifurcation gas sensors, Nonlinear Dynamics, 104:923–940, 2021. https://doi.org/10.1007/s11071-021-06319-0.
M. Ghommem, V. Puzyrev, F. Najar: Deep learning for simultaneous measurements of pressure and temperature using arch resonators, Applied Mathematical Modelling, 93:728–744, DOI: 10.1016/j.apm.2021.01.006, 2021.
M. Alkaddour, M. Ghommem, F. Najar: Nonlinear analysis and effectiveness of weakly coupled microbeams for mass sensing applications, Nonlinear Dynamics, 104, 383–397, 2021. DOI: 10.1007/s11071-021-06298-2.
F. Basheer, E. Mehaisi, A. Elsergany, A. ElSheikh, M. Ghommem, F. Najar: Energy Harvesters for Rotating Systems: Modeling and Performance Analysis, tm - technisches messen, 88(3):164-177, DOI:10.1515/teme-2020-0088, 2021.
H. M. Ouakad, F. Najar: Nonlinear Dynamics of MEMS Arches Assuming Out-of-Plane Actuation Arrangement, Journal of Vibration and Acoustics, 141(4):041010, DOI:10.1115/1.4043064, 2019.
Najar, F., Zaouali, E., Parametrically Tuned Arched Microbeam Using Compliant Mechanism for Mass Sensing Applications. In: Lanteigne, E., Nokleby, S. (eds) Proceedings of the 2025 CCToMM Symposium on Mechanisms, Machines, and Mechatronics. CCToMM M3, 2025. Mechanisms and Machine Science, vol 184. Springer. https://doi.org/10.1007/978-3-031-95489-4_19.
E. Zaouali, F. Najar, Time response and bifurcation diagram of Rott's pendulum with a rotating base for energy harvesting applications, Accepted in Lecture Notes in Mechanical Engineering (ICAMEM2024), Springer, 2024.
Helaili, S., Guizani, A., Najar, F., Chafra, M. (2023). Novel Rebar Made from Epoxy and Braided Natural Alfa Fibers. In: Design and Modeling of Mechanical Systems - V. CMSM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-14615-2_22
Helaili, S., Rezgui, T., Guizani, A., Najar, F. (2023). Reinforcement of Load-Bearing Structural Elements by Curved Composite Plates Made from Braided Natural Fibers. In: Design and Modeling of Mechanical Systems - V. CMSM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-14615-2_20
Baroudi, S., Najar, F. (2023). Modeling and Vibration Analysis of a Nonlinear Piezoelectric Flexoelectric Nanobeam. In: Design and Modeling of Mechanical Systems - V. CMSM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-14615-2_50
Zaouali, E., Najar, F., Kacem, N., Foltete, E. (2023). On the Use of Rott’s Pendulum as an Energy Harvester for Rotating Systems. In: Design and Modeling of Mechanical Systems - V. CMSM 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-031-14615-2_47
S. Baroudi and F. Najar, Parametric Analysis of a Piezoelectric Flexoelectric Energy Harvesting Nanosystem, In: Advances in Mechanical Engineering and Mechanics II. CoTuMe 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. pp. 174–179, 2022. https://doi.org/10.1007/978-3-030-86446-0_23
Jemai A., Baroudi S., Najar F.: Large Strokes of a Piezocomposite Energy Harvester with Interdigitated Electrodes Accounting for Geometric and Material Nonlinearities. In: Feki N., Abbes M.S., Taktak M., Amine Ben Souf M., Chaari F., Haddar M. (eds) Advances in Acoustics and Vibration III. ICAV 2021. Applied Condition Monitoring, vol 17. Springer, Cham, 2021. https://doi.org/10.1007/978-3-030-76517-0_13
Ben Hassena M.A., Samaali H., Najar F., Ouakad H.M. : Innovative In-Plane Converter Design for a Capacitive Energy Harvester. In: Feki N., Abbes M.S., Taktak M., Amine Ben Souf M., Chaari F., Haddar M. (eds) Advances in Acoustics and Vibration III. ICAV 2021. Applied Condition Monitoring, vol 17. Springer, Cham., 2021. https://doi.org/10.1007/978-3-030-76517-0_15
S. Baroudi, A. Jemai and F. Najar, Modeling and Parametric Analysis of a Piezoelectric Flexoelectric Nanoactuator, Springer International Publishing AG M. Belhaq (ed.), Recent Trends in Applied Nonlinear Mechanics and Physics, Springer Proceedings in Physics 199, 2018.
S. Ben Sassi, and F. Najar: Accurate Reduced-Order Modeling of MEMS and NEMS microactuators under dynamic electrostatic loading and large strokes, Systems, Analysis and Automatic Control, Series: Advances in Systems, Signals and Devices, ISBN 978-3-11-047046-8, De Gruyter Publishers, 2017.
A. Jemai, F. Najar, M. Chafra, Z. Ounaies: Advanced Parametric Analysis of Piezoelectric Actuators with Interdigitated Electrodes having Various Cross-Sections. In Design and Modeling of Mechanical Systems-II (pp. 489-499). Lecture Notes in Mechanical Engineering, Springer, Cham, 2015.
S. Ben Sassi, F. Najar: Novel Reduced Order Model for Electrically Actuated MicrobeamBased MEMS, In Design and Modeling of Mechanical Systems-II (pp.513-522). Lecture Notes in Mechanical Engineering, Springer, Cham, 2015.
S. Abdelkhalek, F. Najar, Numerical modelling of a nanobeam with functionally graded piezoelectric-flexoelectric material, 26ème Congrès Français de Mécanique (CFM2025), Mets, August 25-29, France, 2025.
F. Moalla, F. Najar, S. Mehrez, Towards a Personalized Numerical Model of the Human Trunk: Validation Using Experimental Data from Two Subjects, The Fifth Edition of the International Conference on Advanced Materials Mechanics and Manufacturing (A3M2025), June 13-15, 2025, Hammamet, Tunisia.
F. Najar and E. Zaouali, Parametrically tuned arched microbeam using compliant mechanism for mass sensing applications, 2025 CCToMM Symposium on Mechanisms, Machines, and Mechatronics (M3 Symposium), June 19-20, 2025, Ottawa, Canada.
H. Samaali, E. Zaouali, and F. Najar, Electrostatic kinetic energy harvester using a Bennet doubler conditioning circuit and autonomous switching, The Eighth International Conference on Smart Materials and Nanotechnology in Engineering, Nov 25-28, 2024, Sharjah, United Arab Emirates (SMN2024).
M. Ghommem, F. Najar, T. Rabenimanana, V. Walter and N. Kacem, Modeling and Experimental Verification of Coupled Beam Arrays for Mass Sensing, 2024 IEEE 19th International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), Kyoto, Japan, 2024. doi: 10.1109/NEMS60219.2024.10639939.
A. Magdich, S. Baroudi, F. Najar, AND A. Abdelkefi, Electromechanical modeling and performance analysis of L-shaped-based piezoelectric energy harvesting system, The International Conference on Advances in Mechanical Engineering and Mechanics (ICAMEM2024), Sousse, Tunisia, June 28-30, 2024.
E. Zaouali, F. Najar, Time response and bifurcation diagram of Rott's pendulum with a rotating base for energy harvesting applications, The International Conference on Advances in Mechanical Engineering and Mechanics (ICAMEM2024), Sousse, Tunisia, June 28-30, 2024.
S. Mehrez, F. Moalla, F. Najar, Neural network model to identify the dynamic characteristics of the human trunk, The International Conference on Advances in Mechanical Engineering and Mechanics (ICAMEM2024), Sousse, Tunisia, June 28-30, 2024.
K. Alluhydan, F. Najar, A. Abdelkefi, Restitution and viscoelastic collision effects on piezoelectric energy harvesters, The International Conference on Advances in Mechanical Engineering and Mechanics (ICAMEM2024), Sousse, Tunisia, June 28-30, 2024.
F. Najar, M. Ghommem, S. Kocer, A. Elhady, E. M. Abdel-Rahman, Differential Capacitance Gas Sensors, The Third International Nonlinear Dynamics Conference (NODYCON 2023), Rome, Italy, June 18-22, 2023.
H. Samaali, and F Najar: MEMS electrostatic kinetic energy harvester with double capacitor Bennet doubler conditioning circuit and autonomous buck DC/DC converter, The 5th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2023, Marrakech, Morocco, May 15-17, 2023.
E. Zaouali, F. Najar, N. Kacem, E. Foltete, Nonlinear analysis of a rotating double pendulum energy harvester for tire pressure monitoring systems, The 5th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2023, Marrakech, Morocco, May 15-17, 2023.
A. Magdich, S. Baroudi, A. Abdelkefi, F. Najar, Electromechanical modeling and parametric analysis of L-shaped-based bending-torsion piezoelectric energy harvester, The 5th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2023, Marrakech, Morocco, May 15-17, 2023.
H. Ouakad, F. Najar, N. Kacem, Modal interaction of MEMS shallow arch under out-of-plane fringing-fields, The 5th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2023, Marrakech, Morocco, May 15-17, 2023.
T. Rabenimanana, F. Najar, V. Walter, N. Kacem, M. Ghommem: Exploiting nonlinearities of mechanically-coupled microbeams for mass sensing: theoretical and experimental investigation, 10th European Nonlinear Dynamics Conference (ENOC 2020+2), 17-22 July 2022, Lyon, France, 2022.
H. Ouakad, F. Najar: Parametric resonance of a shallow arch microbeam for sensing applications, 10th European Nonlinear Dynamics Conference (ENOC 2020+2), 17-22 July 2022, Lyon, France, 2022.
H. Samaali, M A Ben Hassena, and F Najar: Novel Capacitive MEMS Logic Gates For Logic Circuits and Systems, 2021 IEEE International Conference on Design & Test of Integrated Micro & Nano-Systems (DTS), IEEE, 2021. https://doi.org/10.1109/DTS52014.2021.9498255
F. Moalla, S. Mehrez, F. Najar: An experimental protocol for studying the human trunk behavior under dynamic disturbances, 5th Tunisian Congress on Mechanics : COTUME’2020, Hammamet March 22-24, 2021.
S. Baroudi, F. Najar: Parametric analysis of a piezoelectric flexoelectric energy harvesting nanosystem, 5th Tunisian Congress on Mechanics : COTUME’2020, Hammamet March 22-24, 2021.
M. A. Ben Hassena, H. Samaali, H. M. Ouakad, F. Najar: Innovative In-plane converter design for a Capacitive Energy Harvester, The Third International Conference on Acoustics and Vibration, March 15-16, Hammamet, Tunisia, 2021.
A. Jemai, S. Baroudi, F. Najar: Large strokes of a piezocomposite energy harvester with interdigitated electrodes accounting for geometric and material nonlinearities, The Third International Conference on Acoustics and Vibration, March 15-16, Hammamet, Tunisia, 2021.
H. Samaali, F. Najar: Extended range of a MEMS electrostatic actuator using an adjustable linear controller, 18th IEEE International Multi-Conference on Systems, Signals and Devices (SSD’21), Monastir, Tunisia, March 22–25, 2021.
M. A. Ben Hassena, H. Samaali, H. M. Ouakad, F. Najar: Arched beam based energy harvester using electrostatic transduction for general in-plane excitations, 18th IEEE International Multi-Conference on Systems, Signals and Devices (SSD’21), Monastir, Tunisia, March 22–25, 2021.
F. Najar, M. Ghommem and A. Abdelkefi: Modeling and performance analysis of MEMS arch resonator for pressure sensing applications, International Design Engineering Technical Conferences ASME IDECT-CIE 2019, August 18-21, 2019, Anaheim, California, USA.
F. Najar, M. Ghommem and A. Abdelkefi: On multi-fidelity modeling of squeeze film damping effect on electrically-coupled microbeams, International Design Engineering Technical Conferences ASME IDECT-CIE 2019, August 18-21, 2019, Anaheim, California, USA.
F. Moalla, S. Mehrez, F. Najar: Dynamic Trunk Response Analysis Using a 3D Musculoskelatal Model, 25th Congress of the European Society of Biomechanics (ESB 2019), July 7-10, Vienna, Austria, 2019.
F. Najar, S. Baroudi and H. Samaali: Energy Harvesting Using a Piezoelectric-Flexoelectric Nonobeam, IX ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2019, Paris 9-11 July, 2019.
M.A. Ben Hassena, A. Bessaad, P. Carulli, S. Karmakar, H. Samaali, F. Najar, P. Basset, D. Galayko: Design of a MEMS Electrostatic Kinetic Energy Harvester and its Bennet Conditioning Circuit in Integrated Technologies, 20 th Symposium on Design, Test, Integration & Packaging of MEMS (DTIP’2019), May 15, Paris, France, 2019.
A. Jallouli, N. Kacem, F. Najar, J. Lardies: Effects of squeeze film and initial deflection on the resonance frequencies and modal damping of circular microplates, Proceedings of the ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018, August 26-29, Quebec City, Quebec, Canada, 2018.
M. A. Ben Ouanes, F. Najar, H. Samaali, and P. Basset: Charge doubler electrostatic vibrational energy harvester, The 4th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2018, Tangier, Morocco, June 25-27, 2018.
K. Mrabet, E. Zaoulai, and F. Najar: Hyperelastic modeling of a dielectric elastomer membrane for energy harvesting applications, The 4th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2018, Tangier, Morocco, June 25-27, 2018.
E. Zaouali, F. Najar, N. Kacem, and E. Foltete: Nonlinear response of a Rott’s pendulum for rotating energy harvesting systems, The 4th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2018, Tangier, Morocco, June 25-27, 2018.
H. Samaali, F. Najar, H. Ouakad: 2D electrostatic energy harvesting device using a single shallow arched microbeam, The 4th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2018, Tangier, Morocco, June 25-27, 2018.
A. Jallouli, N. Kacem, F. Najar, G. Bourbon, and J. Lardies: Modeling of the nonlinear dynamic behavior of circular capacitive microplate in interaction with squeeze air film, The 4th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2018, Tangier, Morocco, June 25-27, 2018.
S. Baroudi, and F. Najar: Nonlinear response of a piezoelectric-flexoelectric clamped-clamped nanobeam actuator, The 4th International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2018, Tangier, Morocco, June 25-27, 2018.
M. A. Ben Ouanas, H. Samaali, P. Basset, F. Najar: Optimized charge doubler device for electrostatic vibrational energy harvesting using triangular fingers electrodes, The Second International Conference on Acoustics and Vibration, March 19 - 21, Hammamet, Tunisia, 2018.
M. Ben Hssine, M. Sahraoui, F. Najar, N. Kacem, N. Bouhaddi: Modeling and design of an electromagnetic vortex induced vibration energy harvester, The Second International Conference on Acoustics and Vibration, March 19 - 21, Hammamet, Tunisia, 2018.
F. Moalla, S. Mehrez, F. Najar: Dynamic identification of human trunk behavior as a diagnosis tool for pathologic problems, 4th IEEE Middle East Conference on Biomedical Engineering (MECBME 2018), Tunis (Tunisia), 28-30 March, 2018.
M. A. Ben Ouanas, H. Samaali, P. Basset, F. Najar, Charge doubler vibration energy harvester using self-synchronized mechanical switches, The 17th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications PowerMEMS2017, Kanazawa, Japan, November 14-17, 2017.
A. Jallouli, N. Kacem, F. Najar and J. Lardies: Numerical Modeling of Squeeze Film Damping in Circular Microplates, International Conference on Engineering Vibration, Sofia, Bulgaria, 4--7 September 2017.
M. A. Ben Ouanas, Y. Lu, H. Samaali, P. Basset, F. Najar, Design and test of a Bennet’s doubler device with mechanical switches for vibrational energy harvesting, The 16th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications PowerMEMS2016, Paris, France, December 6-9, 2016.
H. Ouakad, F. Najar, S. El-Borgi, Nonlocal modeling of a carbon nanotube actuated by an electrostatic force, The 3rd International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2016, Marrakech, Morocco, May 23-25, 2016.
S. Baroudi, A. Jemai, F. Najar, Modeling and parametric analysis of a piezoelectric flexoelectric nanoactuator, The 3rd International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2016, Marrakech, Morocco, May 23-25, 2016.
S. Ben Sassi, M.E. Khater, E.M. Abdel-Rahman, F. Najar, Nonlinear dynamic analysis of capacitive shunt micro switch using new actuation methods, The 3rd International Conference on Structural Nonlinear Dynamics and Diagnosis CSNDD2016, Marrakech, Morocco, May 23-25, 2016.
A. Jemai, F. Najar, M. Chafra, Z. Ounaies: Design and Performance of Vibration Energy Harvesters with Interdigitated Electrodes having Different Cross-Sections, 3rd Tunisian Congress of Mechanics: COTUME-2014, March 24-26, Sousse, Tunisia, 2014.
A. Jemai, F. Najar, M. Chafra: Parametric Analysis of Piezoelectric Energy Harvesters using Multilayer Structures, 3rd Tunisian Congress of Mechanics: COTUME-2014, March 24-26, Sousse, Tunisia, 2014.
S. Ben Sassi, F. Najar, K. Mrabet: Design and Fabrication of a Vibration Energy Harvester Based on Piezoaeroelasticity, 3rd Tunisian Congress of Mechanics: COTUME-2014, March 24-26, Sousse, Tunisia, 2014.
A. Jemai, F. Najar, M. Chafra, Z. Ounaies: Novel Electrode Design of a d33-Mode Active Fiber Composite Piezoelectric Actuator. 5th International Congress : Design and Modeling of Mechanical Systems : CMSM’2013, Djerba 25-27 Mars, Tunisia, 2013.
A. Abdelkefi, A. H. Nayfeh, and F. Najar, Bending-torsion piezoelectric energy harvesting under multifrequency base excitations, 4th International Congress : Design and Modeling of Mechanical Systems : CMSM'2011, Sousse, Tunisia, 2011.
A. Abdelkefi, F. Najar, A. H. Nayfeh, and S. B. Ayed, Bending-torsion vibrations for piezoelectric energy harvesting using unimorph cantilever beam, 5th International Conference on Advances in Mechanical Engineering and Mechanics ICAMEM 2010, Hammamet, Tunisia, 2010.
S. B. Ayed, F. Najar, and A. Abdelkefi, Shape influence on the performance of beam-based piezoelectric energy harvesters, 5th International Conference on Advances in Mechanical Engineering and Mechanics ICAMEM 2010, Hammamet, Tunisia, 2010.
A. Jemai, F. Najar, M. Chafra, and Z. Ounaies, Mathematical modeling of an Active-Fiber Composite energy harvester with interdigitated electrodes, 5th International Conference on Advances in Mechanical Engineering and Mechanics ICAMEM 2010, Hammamet, Tunisia, 2010.
H. Samaali, F. Najar, S. Choura, A. H. Nayfeh, and M. Masmoudi, Dynamic study of a capacitive MEMS switch with double clamped-clamped microbeams, 5th International Conference on Advances in Mechanical Engineering and Mechanics ICAMEM 2010, Hamamet, TUNISIA, 2010.
A. Jemai, F. Najar, M. Chafra, Z. Ounaies: Modeling and Design of a Composite Piezoelectric Microstructure, 1st International Conference on Passives and Actives Mechanical Innovations in Analysis and Design of Mechanical Systems, March 22 – 24, Jerba, Tunisia, 2010.
M. Ghommem, A. H. Nayfeh, S. Choura, F. Najar and E. M. Abdel-Rahman: Modeling and Performance Study of a Beam Microgyroscope, The 2009 Joint ASCE-ASME-SES Conference on Mechanics and Materials Blacksburg, 24-27 June, Virginia, USA, 2009.
F. Najar, S. Choura, E. M. Abdel-Rahman, A. H. Nayfeh and S. El-Borgi: Modeling and Design of an FGM-Multilayer Microbeam with Electrostatic Actuation, Actes du Premier Congrès Tunisien de Mécanique COTUME 2008, 17–19 Mars, Hammamet, Tunisia, pp. 241–242, 2008.
F. Najar, E. M. Abdel-Rahman, S. Choura, S. El-Borgi and A. H. Nayfeh: Modeling and Design of a Multilayered Electrostatic Microactuator Using Timoshenko Beam Theory. 4th International Conference on Advances in Mechanical Engineering and Mechanics, Sousse, 16-18 December 2008, Tunisia, 2008.
S. Kessentini, S. Choura and F. Najar: Dynamics of a Large Scale Horizontal Axis Wind Turbine. 4th International Conference on Advances in Mechanical Engineering and Mechanics, Sousse, 16-18 December 2008, Tunisia, 2008.
F. Najar, S. Choura, E. M. Abdel-Rahman, S. El-Borgi and A. H. Nayfeh: Static and Dynamic Behavior of Electrostatic Microactuators and Geometry Effects, US-Tunisia Workshop: Research and Educational Advances in Design and Fabrication of Micro-Electro-Mechanical Systems, December 14-17, 2006, Hammamet, Tunisia.
F. Najar, A. H. Nayfeh, E. M. Abdel-Rahman and S. Choura: Resolving the Dynamics of Electrostatic Microactuators Using a Novel Discretization Technique, the 11th Conference on Nonlinear Vibrations, Stability, and Dynamics of Structures, August 13–17, Blacksburg, VA, USA, 2006.
F. Najar: Physical informed neural network for human balance monitoring, Lightning Talks at the Africa Machine Learning and Health Workshop, Deep Learning INDABA, 21-26 August 2022.
F. Najar: Vibration Energy Harvesting for sensor node applications, Journées Scientifiques sur l’Energie, JourSEn2016, April 19--20, Gafsa, Tunisia, 2016.
F. Najar: Modeling and Design of MEMS and NEMS: Application to Vibration Energy Harvesting, 1st Workshop on Theoretical \& Computational Mechanics with Industrial Applications, September, 29th and 30th, ENIT, Tunis, Tunisia, 2015.
F. Najar: Design optimization of piezoelectric based vibration energy harvester, Second National Workshop on Energy Harvesting and Storage for autonomous microsystems, Grenoble, France, March 26-27, 2012.
Habilitation in Mechanical Engineering: Modeling and Simulations Toward Design of Autonomous Microsystems, National Engineering School of Tunis (TUNISIA).
PhD dissertation (Mechanical Engineering): Static and Dynamic Behavior of MEMS Microactuators, National Engineering School of Tunis (TUNISIA) in collaboration with Virginia Tech (USA) and University of Waterloo (CANADA). Published as a monograph with LAP LAMBERT Academic Publishing AG & Co. KG – Germany (ISBN 978-3-8383-5930-4). Link
MSc dissertation (Mechanical Engineering): Numerical Probabilistic Simulation of Crack Propagation in Aluminum Alloys for Aircraft’s Wings, Ecole Centrale de Paris (FRANCE).