Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (8): 1331-1350.doi: https://doi.org/10.1007/s10483-023-3018-5

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Analytic solution of quasicrystal microsphere considering the thermoelectric effect and surface effect in the elastic matrix

Yunzhi HUANG1, Wenqing ZHENG1,2, Xiuhua CHEN3, Miaolin FENG1   

  1. 1. Department of Engineering Mechanics, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. Marine Design and Research Institute of China, Shanghai 200011, China;
    3. School of Aeronautics and Astronautics, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2023-02-14 Revised:2023-05-29 Published:2023-07-27
  • Contact: Miaolin FENG, E-mail: mlfeng@sjtu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (Nos. U2067220 and 82000980)

Abstract: The incorporation of the quasicrystalline phase into the metal matrix offers a wide range of potential applications in particle-reinforced metal-matrix composites. The analytic solution of the piezoelectric quasicrystal (QC) microsphere considering the thermoelectric effect and surface effect contained in the elastic matrix is presented in this study. The governing equations for the QC microsphere in the matrix subject to the external electric loading are derived based on the nonlocal elastic theory, electro-elastic interface theory, and eigenvalue method. A comparison between the existing results and the finite-element simulation validates the present approach. Numerical examples reveal the effects of temperature variation, nonlocal parameters, surface properties, elastic coefficients, and phason coefficients on the phonon, phason, and electric fields. The results indicate that the QC microsphere enhances the mechanical properties of the matrix. The results are useful for the design and understanding of the characterization of QCs in micro-structures.

Key words: quasicrystal(QC)microsphere, thermoelectric effect, surface effect

2010 MSC Number: 

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