Hierarchical modelling and local stress analysis of composite materials and structures

Translated title of the contribution: Hierarchical modelling and local stress analysis of composite materials and structures

Naoki Takano, Yukio Kashiwagi, Yoshihiro Ohnishi, Masaru Zako

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In the numerical simulation of mechanical behaviors of composite materials and structures, a novel hierarchical modelling technique is proposed. Not only the global deformation but also the mesoscopic stresses are analyzed precisely with less human efforts than conventional methods. Four level hierarchy is defined for the textile composites, and the homogenization method and finite element mesh superposition technique are adopted. The latter technique makes it possible to overlay arbitrary local fine mesh on the global rough mesh. A panel with a rib made of knitted fabric composite material is analyzed by the proposed method. Three-dimensional modelling of the mesostructure of knitted fabric composite material is also shown. The validity of the proposed method was examined, and the mesoscopic stresses are calculated easily.

Original languageJapanese
Pages (from-to)498-505
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume65
Issue number631
Publication statusPublished - 1999
Externally publishedYes

Fingerprint

Composite structures
Stress analysis
Composite materials
Homogenization method
Textiles
Computer simulation

Keywords

  • Composite material
  • Finite element method
  • Homogenization method
  • Knitted fabrics
  • Mesostructure
  • Numerical analysis
  • Structural analysis

ASJC Scopus subject areas

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

Cite this

Hierarchical modelling and local stress analysis of composite materials and structures. / Takano, Naoki; Kashiwagi, Yukio; Ohnishi, Yoshihiro; Zako, Masaru.

In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 65, No. 631, 1999, p. 498-505.

Research output: Contribution to journalArticle

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