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作者:

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

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摘要:

The formula system of the state-vector and Legendre polynomials hybrid method (SV-LPHM) was applied to produce the dispersion curves and mode shape for the general anisotropic multilayer composite cylinders with whatever the dissimilarities of the layer material properties. According to relevant literature's reports, traditional Legendre polynomial method was only able to deal with the multilayer system where the material properties of adjacent layers are not significantly changed. To overcome the drawback, we introduce the state vector method to reshape the wave equation, boundary conditions and interface continuous conditions of the multilayer hollow cylinder in a consistent manner. Moreover, expanding the displacement field by the Legendre polynomials, and then a complete and concise state matrix form is formed for dispersion equation after complex algebraic transformation. All the matrices involving the mass and stiffness have been deduced analytically by the recurrence relation and orthogonality of the Legendre polynomial. The above-mentioned operation overcomes the cumbersome when applying traditional Legendre polynomial method to dealing with the interface displacement and stress continuity. Firstly, we outlined the derivation of the formalism of the hybrid method (SV-LPHM) for guided waves propagating in the anisotropic multilayer hollow cylinder with an arbitrary number of layers. And then we demonstrated the SV-LPHM technique on the composite pipe of isotropic material and anisotropic material, where the key-factors of phase speed, displacement, and stress distribution were assessed and elaborated thoroughly. The results confirm the exponential convergence of the SV-LPHM compared with finite element methods. (C) 2019 Elsevier Masson SAS. All rights reserved.

关键词:

Anisotropic composite hollow cylinder Dispersion curve Legendre polynomial Guided waves

作者机构:

  • [ 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, Shaanxi, Peoples R China
  • [ 4 ] [Ma, Hongwei]Qinghai Univ, Sch Civil Engn, Xining 810016, Qinghai, 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

通讯作者信息:

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

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来源 :

AEROSPACE SCIENCE AND TECHNOLOGY

ISSN: 1270-9638

年份: 2019

卷: 95

5 . 6 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:136

JCR分区:1

被引次数:

WoS核心集被引频次: 17

SCOPUS被引频次: 17

ESI高被引论文在榜: 0 展开所有

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