On the interfacial behavior of a one-dimensional hexagonal piezoelectric quasicrystal film based on the beam theory  

作　　者：Wenkai ZHANG C.S.LU Minghao ZHAO Cuiying FAN Huayang DANG 

机构地区：[1]School of Mechanics and Safety Engineering,Zhengzhou University,Zhengzhou 450001,China [2]School of Civil and Mechanical Engineering,Curtin University,Western Australia 6845,Australia [3]School of Mechanical Engineering,Zhengzhou University,Zhengzhou 450001,China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2025年第2期289-304,共16页应用数学和力学(英文版)

基　　金：Supported by the National Natural Science Foundation of China (Nos. 11902293 and 12272353)。

摘　　要：In this paper,the mechanical response of a one-dimensional(1D)hexagonal piezoelectric quasicrystal(PQC)thin film is analyzed under electric and temperature loads.Based on the Euler-Bernoulli beam theory,a theoretical model is proposed,resulting in coupled governing integral equations that account for interfacial normal and shear stresses.To numerically solve these integral equations,an expansion method using orthogonal Chebyshev polynomials is employed.The results provide insights into the interfacial stresses,axial force,as well as axial and vertical deformations of the PQC film.Additionally,fracture criteria,including stress intensity factors,mode angles,and the J-integral,are evaluated.The solution is compared with the membrane theory,neglecting the normal stress and bending deformation.Finally,the effects of stiffness and aspect ratio on the PQC film are thoroughly discussed.This study serves as a valuable guide for controlling the mechanical response and conducting safety assessments of PQC film systems.

关 键 词：one-dimensional(1D)hexagonal piezoelectric quasicrystal(PQC)film beam theory electric and temperature loads Chebyshev polynomial interfacial behavior 

分 类 号：O343.1[理学—固体力学]