FFT-based homogenization algorithm using digital images

Kenjiro Terada, Katsuyuki Suzuki, Hideomi Ohtsubo

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The applicability of the FFT-based algorithm for evaluating the mechanical behaviors of composites is investigated from practical view points. After the iterative numerical algorithm is presented, the computational efficiency is compared with that for conventional FEM-based homogenization algorithm and then extended to nonlinear analyses such as elastoplastic problems. In addition to preferable features in microstructural analyses, there are several advantages over the conventional approach by the FEM-based homogenization method. While the method is for evaluating the micromechanical response to the macroscopic deformation, the solution method can also be utilized to estimate the homogenized material constants. In the numerical examples, the digital image processing technique is extensively utilized to define the geometry of microstructures so that the method would not suffer from modeling effort.

Original languageEnglish
Pages (from-to)231-236
Number of pages6
JournalMaterials Science Research International
Volume3
Issue number4
Publication statusPublished - 1997 Dec 1
Externally publishedYes

Keywords

  • Composite materials
  • Digital images
  • FFT-based solution method
  • Homogenization method

ASJC Scopus subject areas

  • Materials Science(all)

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