Optimum design of composite wing considering stiffened panel buckling

Yoko Kato, Masaki Kameyama, Ning Hu, Hisao Fukunaga

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The present paper treats an optimum design of CFRP stiffened panels under compressive and shear loads. Buckling analysis of stiffened panels is performed by approximate buckling formula on global and local buckling, which is based on the classical lamination theory. First in the present paper, the validity of approximate buckling formula is studied by comparing with the finite element analysis based on the Mindlin plate theory. Next, this approximate analysis technique is applied to a minimum weight design of wing box structures considering stiffened panel buckling. The optimum dimensions of stiffeners and laminate configurations are obtained by using nonlinear optimization technique. The validity of the present optimization approach is examined through the numerical results.

Original languageEnglish
Pages (from-to)479-486
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume70
Issue number3
DOIs
Publication statusPublished - 2004 Mar

Keywords

  • Approximation
  • Buckling
  • Composite Material
  • Optimum Design
  • Stiffened Panel

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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