Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (12): 2039-2056.doi: https://doi.org/10.1007/s10483-023-3064-9

• Articles •     Next Articles

Nonlinear analysis on electrical properties in a bended composite piezoelectric semiconductor beam

Luke ZHAO1, Feng JIN2,3, Zhushan SHAO1, Wenjun WANG4   

  1. 1. School of Science, Xi'an University of Architecture and Technology, Xi'an 710055, China;
    2. School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China;
    3. MOE Key Laboratory for Multifunctional Materials and Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an 710049, China;
    4. School of Science, Lanzhou University of Technology, Lanzhou 730050, China
  • Received:2023-08-14 Revised:2023-10-30 Online:2023-12-01 Published:2023-11-27
  • Contact: Feng JIN, E-mail: jinfengzhao@263.net
  • Supported by:
    the National Natural Science Foundation of China (No. 12072253)

Abstract: In this paper, the interactions between the transverse loads and the electrical field quantities are investigated based on the nonlinear constitutive relation. By considering a composite beam consisting of a piezoelectric semiconductor and elastic layers, the nonlinear model is established based on the phenomenological theory and Euler’s beam theory. Furthermore, an iteration procedure based on the differential quadrature method (DQM) is developed to solve the nonlinear governing equations. Before analysis, the convergence and correctness are surveyed. It is found that the convergence of the proposed iteration is fast. Then, the transverse pressure induced electrical field quantities are investigated in detail. From the calculated results, it can be found that the consideration of nonlinear constitutive relation is necessary for a beam undergoing a large load. Compared with the linear results, the consideration of the nonlinear constitutive relation breaks the symmetry for the electric potential, the electric field, and the perturbation carrier density, and has little influence on the electric displacement. Furthermore, the non-uniform pressures are considered. The results show that the distributions of the electric field quantities are sensitively altered. It indicates that the electrical properties can be manipulated with the design of different transverse loads. The conclusions in this paper could be the guidance on designing and manufacturing electronic devices accurately.

Key words: nonlinear constitutive relation, electrical property, composite piezoelectric semiconductor beam, differential quadrature method (DQM), iteration

2010 MSC Number: 

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