Efficient modeling of microscopic heterogeneity and local crack in composite materials by finite element mesh superposition method

Naoki Takano, Masaru Zako, Toru Okazaki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The finite element mesh superposition method is applied to the two-dimensional crack problem of composite materials. The microscopic heterogeneity involved in the composite materials is modeled by the fixed grid model. On this global mesh, a local mesh that considers the local crack is superimposed without taking care of the matching of nodes and elements of both meshes. The use of the fixed grid model for the global mesh can reduce the time and efforts for the mesh generation to express the complex heterogeneous microstructures. Also it makes the computation and the implementation of the finite element mesh superposition method very easy. The accuracy was verified by comparing with the theory and the calculation by the conventional fine mesh.

Original languageEnglish
Pages (from-to)602-609
Number of pages8
JournalJSME International Journal, Series A: Solid Mechanics and Material Engineering
Volume44
Issue number4
DOIs
Publication statusPublished - 2001 Oct 1
Externally publishedYes

Keywords

  • Composite material
  • Crack
  • Finite element method
  • Heterogeneity
  • Numerical analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering

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