3D modeling of porous ceramics by high-resolution X-ray CT for stress analyses

Yasushi Ikeda, Yasuo Nagano, Hiroshi Kawamoto, Naoki Takano

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Porous ceramic materials are in widespread use and continue to be developed as the key materials for many industrial fields. The mechanical properties of these porous materials are very sensitive to their 3-dimensional structures. It is very important to analyze such materials taking into account their 3-dimensional morphology of the pore structure. An image-based modeling method using high resolution 3-dimensional computed tomography (CT) was developed, which makes it possible to reconstruct the complicated porous structures of porous ceramics nondestructively. From the 3-dimensional CT data, binary-processed images can be obtained and a voxel mesh computational analysis was carried out with a homogenization method, from which macroscopic and microscopic stress distribution for porous ceramics were possible to be calculated and visualized. From the 3-D CT image, a local microscopic model of the porous alumina was analyzed using voxel mesh method of mathematical homogenization method. Using the data the microscopic local stress distribution of the model was obtained.

Original languageEnglish
Pages (from-to)28-34
Number of pages7
JournalKey Engineering Materials
Volume270-273
Issue numberI
Publication statusPublished - 2004 Nov 25
Externally publishedYes
EventProceedings of the 11th Asian Pacific Conference on Nondestructive Testing - Jeju Island, Korea, Republic of
Duration: 2003 Nov 32003 Nov 7

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Keywords

  • 3-D
  • Image-based modeling
  • Porous Ceramics
  • Stress analysis
  • X-ray CT

ASJC Scopus subject areas

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

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