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Author:

Xie, Ke (Xie, Ke.) | Chen, Hongyong (Chen, Hongyong.) | Wang, Yuewu (Wang, Yuewu.) | Li, Jicheng (Li, Jicheng.) | Jin, Fan (Jin, Fan.)

Indexed by:

EI Scopus SCIE

Abstract:

In this study, a model for the nonlinear dynamic analysis of the geometrically imperfect sandwich beam with functionally graded material (FGM) facets and auxetic honeycomb core is proposed. The auxetic feature of the honeycomb material is realized by a homogenization method, which gives the expressions of the effective material coefficients in terms of material property and cellular geometric parameters. The nonlinear motion equation of the geometrically imperfect beam is derived based on the Reddy's higher shear deformation theory, von K ' arm ' an nonlinear theory, as well as general geometric imperfection function. The thermal effect on the material properties and structural rigidity is also taken into account in this model. The Newmark method and Newton-Raphson iterative method are employed to solve the nonlinear motion equation of the sandwich beam. In numerical examples, the dynamic response of the sandwich beam under two types of load, i.e. moving load and impulse load, are discussed in details. The influences of various factors (such as material parameter, geometric imperfection, and thermal condition) on the nonlinear dynamic behaviors of the sandwich beam are elaborately investigated. The numerical results show those factors can play significant roles in the bearing ability, structural stiffness, or nonlinear dynamic behaviors of the sandwich beam in certain conditions. Some key conclusions on the influences are drawn from the numerical results, which can be a useful reference for future investigations.

Keyword:

Auxetic honeycomb Geometric imperfection Sandwich beam Nonlinear dynamic response

Author Community:

  • [ 1 ] [Xie, Ke]China Acad Engn Phys, Inst Syst Engn, Mianyang 621900, Sichuan, Peoples R China
  • [ 2 ] [Chen, Hongyong]China Acad Engn Phys, Inst Syst Engn, Mianyang 621900, Sichuan, Peoples R China
  • [ 3 ] [Li, Jicheng]China Acad Engn Phys, Inst Syst Engn, Mianyang 621900, Sichuan, Peoples R China
  • [ 4 ] [Jin, Fan]China Acad Engn Phys, Inst Syst Engn, Mianyang 621900, Sichuan, Peoples R China
  • [ 5 ] [Xie, Ke]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621999, Sichuan, Peoples R China
  • [ 6 ] [Chen, Hongyong]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621999, Sichuan, Peoples R China
  • [ 7 ] [Li, Jicheng]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621999, Sichuan, Peoples R China
  • [ 8 ] [Jin, Fan]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621999, Sichuan, Peoples R China
  • [ 9 ] [Wang, Yuewu]Beijing Univ Technol, Fac Mat & Mfg, Beijing Key Lab Nonlinear Vibrat & Strength Mech S, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Xie, Ke]China Acad Engn Phys, Inst Syst Engn, Mianyang 621900, Sichuan, Peoples R China;;

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Source :

AEROSPACE SCIENCE AND TECHNOLOGY

ISSN: 1270-9638

Year: 2023

Volume: 144

5 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 14

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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