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Author:

Zheng, Mingfang (Zheng, Mingfang.) | Ma, Hongwei (Ma, Hongwei.) | Lyu, Yan (Lyu, Yan.) | Lu, Chao (Lu, Chao.) | He, Cunfu (He, Cunfu.) (Scholars:何存富)

Indexed by:

EI Scopus SCIE

Abstract:

A new spectral method based on the hybrid formula system of the state-vector and Legendre polynomials are used to derive the explicit expressions of circumferential guided waves in the anisotropic multilayer composite cylinders with an arbitrary lay-up. In this hybrid method, the state vector was utilized to transform the wave equation, boundary conditions, and interface continuous conditions in the cylinder coordinate system to form the dispersion equation in terms of the state matrix. Then, following the principle of the Galerkin method, projecting the dispersion state matrix equations onto the weight functions consisting of Legendre polynomials, the system of algebraic equation is obtained. The dispersion curves and mode shape can be obtained by solving the eigenvalues and eigenvectors of the system of algebraic equations. This hybrid method uses the orthogonal and recursive properties of the Legendre polynomial to simplify the integral expressions involved in all the matrices and yields the closed-form solutions. Numerical verification, including the cases of isotropic and anisotropic viscoelastic/elastic multilayer cylinders, was conducted to evaluate the performance of the proposed method. The results show that the proposed method overcomes the cumbersome of the traditional Legendre polynomial method to treat the interface displacement and stress continuity. The results also confirm that the hybrid method has the exponential convergence.

Keyword:

Anisotropic laminate hollow cylinder Legendre polynomial State vector Circumferential guided waves Dispersion curve

Author Community:

  • [ 1 ] [Zheng, Mingfang]Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China
  • [ 2 ] [Ma, Hongwei]Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China
  • [ 3 ] [Zheng, Mingfang]Xi An Jiao Tong Univ, Sch Aerosp Engn, State Key Lab Strength & Vibrat Mech Struct, Xian 710049, Peoples R China
  • [ 4 ] [Ma, Hongwei]Qinghai Univ, Sch Civil Engn, Xining 810016, Peoples R China
  • [ 5 ] [Lyu, Yan]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 6 ] [He, Cunfu]Beijing Univ Technol, Coll Mech Engn & Appl Elect Technol, Beijing 100124, Peoples R China
  • [ 7 ] [Lu, Chao]Nanchang Hangkong Univ, Key Lab Nondestruct Testing, Minist Educ, Nanchang 330063, Jiangxi, Peoples R China

Reprint Author's Address:

  • [Ma, Hongwei]Dongguan Univ Technol, Sch Environm & Civil Engn, Dongguan 523808, Peoples R China;;[Ma, Hongwei]Qinghai Univ, Sch Civil Engn, Xining 810016, Peoples R China

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Source :

COMPOSITE STRUCTURES

ISSN: 0263-8223

Year: 2021

Volume: 255

6 . 3 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:116

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 22

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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