Simultaneous optimization of shape and laminate configurations of laminated panels under multiple loadings

Hisao Fukunaga, Hideki Sekine, Masahiro Hiragishi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The present paper shows an optimum design approach on laminated composite structures subjected to multiple in-plane loadings. A simplified design approach is developed to optimize layer angle and layer thickness distributions of composite structures, which leads to a simultaneous optimization of a structural shape and laminate configurations. An explicit optimal relation is derived for layer angles and layer thickness ratios in a single-element laminate, using the minimum strain energy criterion. Next, a strength optimization approach on a multi-element laminated panel under multiple loadings is developed for determining layer angle and layer thickness distributions. The present approach can determine a rough structural shape in addition to layer angle and layer thickness distributions. The optimal structure can be efficiently obtained with a small number of finite element analyses.

Original languageEnglish
Pages (from-to)223-237
Number of pages15
JournalAdvanced Composite Materials
Volume3
Issue number3
DOIs
Publication statusPublished - 1994 Jan 1

Keywords

  • In-plane loads
  • Laminate configuration
  • Multiple loading
  • Optimum design
  • Shape optimization

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering

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