• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Non-local Stress Analysis of Heterogeneous Media by Image-based. Mesh Superposition Method and Its Verification

Research Project

Project/Area Number 14350058
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionRitsumeikan University (2004)
Osaka University (2002-2003)

Principal Investigator

TAKANO Naoki  Ritsumeikan University, Department of Micro System Technology, Professor, 理工学部, 教授 (10206782)

Co-Investigator(Kenkyū-buntansha) ZAKO Masaru  Osaka University, Management of Industry and Thchnology, Professor, 大学院・工学研究科, 教授 (40170831)
KURASHIKI Tetsusei  Osaka University, Management of Industry and Technology, Associate Professor, 大学院・工学研究科, 助教授 (30294028)
ISONO Yoshitada  Ritsumeikan University, Department of Micro System Technology, Associate Professor, 理工学部, 助教授 (20257819)
Project Period (FY) 2002 – 2004
Project Status Completed (Fiscal Year 2004)
Budget Amount *help
¥14,900,000 (Direct Cost: ¥14,900,000)
Fiscal Year 2004: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 2003: ¥4,500,000 (Direct Cost: ¥4,500,000)
Fiscal Year 2002: ¥7,900,000 (Direct Cost: ¥7,900,000)
KeywordsImage-based modeling / Mesh superposition method / Multi-scale method / Finite element method / Morphology / Homogenization method / Porous ceramics / Non-local problem / 立体視 / 繊維強化プラスチック
Research Abstract

By combining the orginal Finite Element Mesh Superposition Method and the Image-based Modeling technology with high-resolution X-ray CT system, a novel "Image-based Mesh Superposition Meth" has been proposed. The proposed method can solve such non-local stress problems as interface problems, locally apppearing yielding zone or damaged zone and problems with high strain gradient. Hence, this method can overcome the problems to which the current multi-scale computational methods can not be applied.
The high-resolution X-ray CT used in this study can provide the CT images with 2.6μm resolution. The numerical model for finite element analysis is automatically generated using the voxel finite elements. To solve the very large-scale algebraic equations generated by this image-based modeling technique, an element-by-element iterative solver and the out-of-core skyline method with renumbering by RCM method are used. To determine the microstructure model, a morphology analysis methodology has al … More so been proposed. The macroscopic model is generated using the homogenized (averaged) mechanical properties calculated by the asymptotic homogenization theory. The microscopic stress is calculated by the original finite element mesh superposition method. On a standard personal computer, a three-dimensional non-local problem with approximately 100,000 voxel elements is solvable.
The developed computational method has been applied to real porous ceramics. The predicted homogenized properties of porous alumina with needle-like pores have been verified through comparison with experimentally measured values. The error was only 1%. To verify the accuracy of the microscopic stress calculated by the mesh superposition method, two-dimensional analysis has been carried out and compared with conventional finite element analysis with fine mesh. For a two-dimensional interface crack problem of dissimilar porous materials, very good coincidence was obtained between the proposed and reference analyses.
To visualize the calculated three-dimensional distribution of the microscopic stresses, original software named V-SEM (Visualization and Stress Evaluation of material Microstructures) has been developed especially designed for the image-based multi-scale analysis. It is helpful to evaluate the microscopic stress quantitatively by plotting the histogram. Less

Report

(4 results)
  • 2004 Annual Research Report   Final Research Report Summary
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (23 results)

All 2004 Other

All Journal Article (11 results) Publications (12 results)

  • [Journal Article] マルチスケール法による非均質体中のき裂先端におけるミクロ応力解析2004

    • Author(s)
      高野直樹, 奥野義紘
    • Journal Title

      日本機械学会論文集(A編) 70・692

      Pages: 525-531

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] 多孔体モルフォロジーのディジタルイメージベース・アナリシス2004

    • Author(s)
      高野直樹, 辻村幸治
    • Journal Title

      日本機械学会論文集(A編) 70・694

      Pages: 787-793

    • NAID

      110004998761

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Three-scale finite element analysis of heterogeneous media by asymptotic homogenization and mesh superposition methods2004

    • Author(s)
      高野直樹, 奥野義紘
    • Journal Title

      International Journal of Solids and Structures 41・15

      Pages: 4121-4135

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Study on large deformation characteristics of knitted fabric reinforced thermoplastic composites at forming temperature by digital image-based strain measurement technique2004

    • Author(s)
      高野直樹, 座古勝, 藤津麗子, 西籔和明
    • Journal Title

      Composites Science and Technology 64・13/14

      Pages: 2153-2163

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] 重合メッシュ法によるミクロ構造モデリングとマルチスケール応力解析2004

    • Author(s)
      高野直樹, 奥野義紘
    • Journal Title

      日本計算工学会計算工学講演会論文集 9・1

      Pages: 79-80

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2004 Annual Research Report 2004 Final Research Report Summary
  • [Journal Article] Microscopic stress analysis at crack tip in heterogeneous media by multi-scale method2004

    • Author(s)
      Naoki Takano, Yoshihiro Okuno
    • Journal Title

      Transactions of JSME Series A (in Japanese) 70-692

      Pages: 525-531

    • NAID

      110004998716

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Digital image-based analysis of morphology for porous materials2004

    • Author(s)
      Naoki Takano, Kouji Tsujimura
    • Journal Title

      Transactions of JSME Series A (in Japanese) 70-694

      Pages: 787-793

    • NAID

      110004998761

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Three-scale finite element analysis of heterogeneous media by asymptotic homogenization and mesh superposition methods2004

    • Author(s)
      Naoki Takano, Yoshihiro Okuno
    • Journal Title

      International Journal of Solids and Structures 41-15

      Pages: 4121-4135

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Study on large deformation characteristics of knitted fabric reinforced thermoplastic composites at forming temperature by digital image-based strain measurement technique2004

    • Author(s)
      Naoki Takano, Masaru Zako, Reiko Fujitsu, Kazuaki Nishiyabu
    • Journal Title

      Composites Science and Technology 63-13/14

      Pages: 2153-2163

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] Microstructure modeling and multi-scale stress analysis by mesh superposition method2004

    • Author(s)
      Naoki Takano, Yoshihiro Okuno
    • Journal Title

      Proceedings of Japan Society of Computational Science and Engineering (in Japanese) 9-1

      Pages: 79-80

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2004 Final Research Report Summary
  • [Journal Article] マルチスケール法による不均質体中のき裂先端におけるミクロ応力解析2004

    • Author(s)
      高野直樹, 奥野義紘
    • Journal Title

      日本機械学会論文集(A編) 70・692

      Pages: 525-531

    • NAID

      110004998716

    • Related Report
      2004 Annual Research Report
  • [Publications] 高野直樹, 座古勝, 奥野義紘: "界面き裂を有する不均質接合体のマルチスケール有限要素解析"材料. 52・8. 952-957 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高野直樹: "Multi-scale modeling and analysis of heterogeneity in ceramics"Proc. International Conference on Advanced Technology in Experimental Mechanics 2003 (ATEM' 03). (CD-ROM). (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高野直樹, 座古勝, 辻村幸治: "多孔体モルフォロジーのデジタルイメージベース・アナリシス"日本機械学会2003年度年次大会講演論文集. Vol.VII No.03-1. 159-160 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高野直樹, 座古勝, 奥野義紘: "重合メッシュ法による三次元大規模マルチスケール応力解析手法に関する研究"日本機械学会2003年度年次大会講演論文集. Vol.VII No.03-1. 163-164 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 奥野義紘, 高野直樹, 座古勝: "マルチスケール法による不均質在中のき裂先端のミクロ応力解析"日本機械学会第16回計算力学講演会講演論文集. No.03-26. 603-604 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高野直樹, 座古勝, 藤津麗子, 西藪和明: "Computer-aided thermoforming of FRTP with digital image-based measurement of large strain distribution"Proc. International Conference on Composite Materials 14. (CD-ROM). (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 高野直樹, 座古勝, 奥野義紘: "Multi-scale finite element analysis of porous materials and components by asymptotic homogenization theory and enhanced mesh superposition method"Modelling and Simulation in Materials Science and Engineering. 11・2. 137-156 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 高野直樹: "State-of-the-art of the multi-scale analysis of advanced composite materials by homogenization method"Journal of the Korean Society for Composite Materials. 15・5. 44-52 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 高野直樹, 座古勝: "多孔質セラミックスのイメージベース応力解析ツールの開発"日本機械学会第15回計算力学講演会講演論文集. 289-290 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 高野直樹, 座古勝, 奥野義紘: "Multi-scale Finite Element Analysis of Porous Ceramics Joint"Proc. JSME/ASME International Conference on Materials and Processing. 2. 47-52 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 奥野義紘, 高野直樹, 座古勝, 辻村幸治: "重合メッシュ法による多孔質セラミック接合体の効率的マルチスケール解析"日本複合材料学会第27回複合材料シンポジウム講演要旨集. 227-228 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 藤津麗子, 高野直樹, 座古勝, 西籔和明: "デジタルイメージベース計測を用いた編物複合材料の成形中の大変形特性評価"日本複合材料学会第27回複合材料シンポジウム講演要旨集. 189-190 (2002)

    • Related Report
      2002 Annual Research Report

URL: 

Published: 2002-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi