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作者:

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

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EI Scopus SCIE

摘要:

In this paper, a nonlinear analytical model is presented for the low-velocity collision impact of a sandwich plate with auxetic honeycomb-core layer. The auxetic feature of the honeycomb material is realized by mathematically expressing the effective material coefficients in terms of material property and cellular geometric parameters through a homogenization method. The higher order shear deformation theory, the von Karman nonlinearity theory, and a modified Hertz contact law which accounts for the contact pressure distribution and indentation effect, are employed to establish the kinematic relations. The Newmark time integration scheme in conjunction with the direct iterative method is utilized to establish a solution procedure for the nonlinear dynamic governing equation. The verification of the presented model with the data in published literatures is carried out, followed by a series of numerical analyses for influences of cellular geometric features and impactor's initial conditions (such as impactor's initial velocity, mass, and nose curvature radius) on the nonlinear dynamic response. The results of numerical analyses show that the geometric features of the unit cell in the honeycomb-core and impactor's initial conditions can cause significant influences on the nonlinear collision impact behaviors of the system.

关键词:

Sandwich plate Nonlinear low-velocity impact Modified Hertz contact law Auxetic honeycomb

作者机构:

  • [ 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 ] [Wang, Yuancen]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 621900, Sichuan, Peoples R China
  • [ 6 ] [Chen, Hongyong]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621900, Sichuan, Peoples R China
  • [ 7 ] [Li, Jicheng]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621900, Sichuan, Peoples R China
  • [ 8 ] [Wang, Yuancen]Shock & Vibrat Engn Mat & Struct Key Lab Sichuan P, Mianyang 621900, 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

通讯作者信息:

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

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来源 :

COMPUTERS & STRUCTURES

ISSN: 0045-7949

年份: 2024

卷: 304

4 . 7 0 0

JCR@2022

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SCOPUS被引频次: 4

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