Structural Engineering and Mechanics

  • 제60권3호
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  • Pages.365-386
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  • 2016
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Effects of imperfection shapes on buckling of conical shells under compression

  • Shakouri, Meisam (Department of Aerospace Engineering, Semnan University) ;
  • Spagnoli, Andrea (DICATeA, University of Parma) ;
  • Kouchakzadeh, M.A. (Department of Aerospace Engineering and Center of Excellence in Aerospace Systems, Sharif University of Technology)
  • 투고 : 2016.01.08
  • 심사 : 2016.07.28
  • 발행 : 2016.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

This paper describes a systematic numerical investigation into the nonlinear elastic behavior of conical shells, with various types of initial imperfections, subject to a uniformly distributed axial compression. Three different patterns of imperfections, including first axisymmetric linear bifurcation mode, first non-axisymmetric linear bifurcation mode, and weld depression are studied using geometrically nonlinear finite element analysis. Effects of each imperfection shape and tapering angle on imperfection sensitivity curves are investigated and the lower bound curve is determined. Finally, an empirical lower bound relation is proposed for hand calculation in the buckling design of conical shells.

키워드

참고문헌

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피인용 문헌

  1. Buckling of axially compressed composite cylinders with geometric imperfections vol.29, pp.4, 2016, https://doi.org/10.12989/scs.2018.29.4.557
  2. Analytical solution for stability analysis of joined cross-ply thin laminated conical shells under axial compression vol.3, pp.2, 2021, https://doi.org/10.12989/cme.2021.3.2.117