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Electromechanical bending of Porous Functionally Graded Piezoelectric (PFGP) nanobeams with flexoelectricity

  • Alaa A. Abdelrahman (Mechanical Design & Production Department, Faculty of Engineering, Zagazig University) ;
  • Hanaa E. Abdel-Mottaleb (Structural Engineering Department, Faculty of Engineering, Zagazig University) ;
  • Mohamed A. Eltaher (Mechanical Engineering Department, Faculty of Engineering, King Abdulaziz University) ;
  • Azza M. Abdraboh (Physics Department, Faculty of Science, Benha University) ;
  • Abdallah M. Kabeel (Mechanical Design & Production Department, Faculty of Engineering, Zagazig University)
  • Received : 2023.10.06
  • Accepted : 2024.12.10
  • Published : 2025.09.25
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Abstract

This study develops a size-dependent model based on modified nonlocal strain gradient theory to examine the effects of flexoelectricity and porosity distribution on the electromechanical bending behavior of piezoelectric functionally graded (FG) nanocomposite beams on Winkler-Pasternak foundations under different loading conditions. The nanocomposite comprises a porous FG core with piezoelectric face layers, using a nonlinear power law for thorough-thickness FG material gradation. Various porosity distribution patterns are considered, and closed-form solutions for electromechanical bending deflection are derived and validated. Results show that nonclassical bending behavior can be optimized by adjusting FG gradation, porosity,flexoelectricity, and foundation parameters, providing insightsfor MEMS and NEMS applications.

Keywords

References

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