Articles

Green’s functions of two-dimensional piezoelectric quasicrystal in half-space and bimaterials

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  • 1. College of Science, China Agricultural University, Beijing 100083, China;
    2. College of Engineering, China Agricultural University, Beijing 100083, China

Received date: 2022-08-02

  Revised date: 2022-10-05

  Online published: 2023-02-04

Supported by

the National Natural Science Foundation of China (Nos. 11972365 and 12102458)

Abstract

In this paper, we obtain Green’s functions of two-dimensional (2D) piezoelectric quasicrystal (PQC) in half-space and bimaterials. Based on the elastic theory of QCs, the Stroh formalism is used to derive the general solutions of displacements and stresses. Then, we obtain the analytical solutions of half-space and bimaterial Green’s functions. Besides, the interfacial Green’s function for bimaterials is also obtained in the analytical form. Before numerical studies, a comparative study is carried out to validate the present solutions. Typical numerical examples are performed to investigate the effects of multi-physics loadings such as the line force, the line dislocation, the line charge, and the phason line force. As a result, the coupling effect among the phonon field, the phason field, and the electric field is prominent, and the butterfly-shaped contours are characteristic in 2D PQCs. In addition, the changes of material parameters cause variations in physical quantities to a certain degree.

Cite this article

Xiaoyu FU, Xiang MU, Jinming ZHANG, Liangliang ZHANG, Yang GAO . Green’s functions of two-dimensional piezoelectric quasicrystal in half-space and bimaterials[J]. Applied Mathematics and Mechanics, 2023 , 44(2) : 237 -254 . DOI: 10.1007/s10483-023-2955-9

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