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The University of Tokyo

Research Project

Project/Area Number 09555198
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Composite materials/Physical properties
Research InstitutionThe University of Tokyo

Principal Investigator

TAKEDA Nobuo  Graduate School of Frontier Sciences, The University of Tokyo, Professor, 大学院・新領域創成科学研究科, 教授 (10171646)

Co-Investigator(Kenkyū-buntansha) OGIHARA Shinji  Faculty of Science and Technology, Science University of Tokyo, Lecturer, 理工学部, 助手 (70266906)
宋 東烈  (財)ファインセラミックスセンター, 研究員
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥12,300,000 (Direct Cost: ¥12,300,000)
Fiscal Year 1999: ¥2,600,000 (Direct Cost: ¥2,600,000)
Fiscal Year 1998: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1997: ¥7,400,000 (Direct Cost: ¥7,400,000)
KeywordsElevated Temperature / Polymer Matrix Composites / Damage Mechanics / Transverse Crack / Delamination / Micro-mechanics / Soft X-ray / Replica / 軟X線
Research Abstract

A damage mechanics analysis was used to derive the energy release rate associated with matrix cracking and average stress of cracked plies. Matrix crack density as function of laminate stress was predicted based on both energy and average stress criteria. Laminate strain increment caused by matrix cracking was also derived as a function of applied laminate stress and matrix crack density, and the relation between laminate stress and strain could be predicted considering matrix cracking.
Microscopic damage progress under static tensile loading was observed to study the effect of matrix resin, stacking sequence and temperature, experimentally. The analytical prediction of matrix crack behavior and the relation between laminate stress and strain were compared with the experimental results obtained. Analytical predictions for matrix crack behavior were in good agreement with experimental results. However, analytical prediction underestimated the laminate stress, because strain increment associated with matrix crack opening displacement is overestimated in this analysis. An advantage of the present predictive method is that it can be applied to laminates with arbitrary stacking sequences.
Microscopic damage progress behavior in quasi-isotropic CFRP laminates under fatigue tensile loading was also observed. The effect of stacking sequence on microscopic damages was investigated. Damage mechanics analysis was used to derive the energy release rate associated with matrix cracking. Matrix cracking behavior was modeled using modified Paris-law approach.
Microscopic damage progress in cross-ply laminates under thermal fatigue loading was also investigated. Matrix cracks initiated in both O° and 90° plies and the number of cracks increased as the number of cycles increased. It was found that modified Paris law approach was effective far thin plies and average stress approach was effective for thick plies.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (36 results)

All Other

All Publications (36 results)

  • [Publications] N. Takeda, S. Kobayashi, S. Ogihara, A. Kobayashi: "Effects of toughened interlaminar layers on fatigue damage progress in quasiisotropic CFRP laminates."International Journal of Fatigue. 21(3). 235-242 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Takeda, M.Kiriyama: "Matrix-crack evolution in SiC fiber/glass matrix cross-ply laminates"Composites : Part A. 30(4). 593-597 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Ogihara, N. Takeda, S. Kobayashi, A. Kobayashi: "Effects of stacking sequence on microscopic fatigue damage development in quasi-isotropic CFRP laminates with interlaminar-toughened layers"Composites Science and Technology. 59(9). 1387-1398 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Okabe, N. Takeda, J. Komotori, M. Shimizu, W. A. Curtin: "A new fracture mechanics model for multiple matrix cracks of SiC fiber reinforced brittle-matrix composites"Acta Materialia. 47(17). 4299-4309 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N. Takeda, L. N. Mccartney, S. Ogihara: "The application of a ply-refinement technique to the analysis of microscopic deformation in interlaminar-toughened laminates with transverse cracks"Composites Science and Technology. 60(2). 231-240 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Kobayashi, N. Takeda, S. Ogihara, A. Kobayshi: "Damage mechanics analysis of transverse cracking evolution in delaminated CFRP laminates"Journal of Reinforced Plasticsand Composites. 18(15). 1360-1366 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Okabe, N. Takeda, M. Sekiguchi: "Macroscopic and microscopic elastic constant measurements of ceramic matrix composites using ultrasonic waves"Journal of Composite Materials. 33(18). 1743-1755 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Okabe, J. Komotori, M. Shimizu, N. Takeda: "Mechanical behavior of SiCfiber reinforced brittle-matrix composites"Journal of Materials Science. 34. 3405-3412 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] TAKEDA, N., KOBAYASHI, S., OGIHARA, S., KOBAYASHI, A.: "Experimental Characterization of Microscopic Damage Progress in Quasi-Isotropic GFRP Laminates -Effect of Interlaminar- Toughened Layers"Advanced Composite Materials. Vol. 7(2). 183-199 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] TAKEDA, N., OGIHARA, S., NAKATA, N., KOBAYASHI, A.: "Characterization of Microscopic Failures Process and Deformation in Glass/Nylon Composites by Micro-Grid Method"Composite Interfaces. Vol. 5(4). 305-321 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] TAKEDA, N., OGIHARA, S.: "Micromechanical Characterrization of Local Deformation in Interlaminar-Toughened CFRP Laminates"Composites : Part A. Vol. 29A. 1522-1545 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] OGIHARA, S., TAKEDA. N., KOBAYASHI, A.: "Transverse Cracking in CFRP Laminates with Interlaminar Resin Layers"Advanced Composites Materials. Vol. 7(4). 347-364 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] TAKEDA, N., KOBAYASHI, S., OGIHARA. S., KOBAYASHI, A.: "Effects of Toughened Interlaminar Layers on Fatigue Damage Progress in Quasi-Isorotorpic CFRP Laminates"International Journal of Fatigue. Vol. 21(3). 235-242 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] TAKEDA, N., KIRIYAMA, M.: "Matrix-Crack Evolution in SiC Fiber/Glass Matrix Cross-Ply Laminates"Composites : Part A. Vol. 30(4). 593-597 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] OGIHARA, S., TAKEDA, N., KOBAYASHI. S., KOBAYASHI, A.: "Effects of Stacking Sequence on Microscopic Fatigue Damage Development in Quasi-Isotropic CFRP Laminates with Interlaminar-Toughened Layers"Composites Science and Technology. Vol. 59 (9). 1387-1398 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] OKABE, T., TAKEDA, N., KOMOTORI, J., SHIMIZU, M., CURTIN, W. A.: "A New Fracture Mechanics Model for Multiple Matrix Cracks of SiC Fiber Reinforced Brittle-Matrix Composites"Acta Materialia. Vol. 47(17). 4299-4309 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] TAKEDA. N., McCartney, L. N., OGIHARA, S.: "The Application of Ply-Refinement Technique to the Analysis of Microscopic Deformation in Interlaminar-Toughened Laminates with Transverse Cracks"Composites Science and Technology. Vol. 60(2). 231-240 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] KOBAYASHI, S., TAKEDA, N., OGIHARA, S., KOBAYASHI, A.: "Damage Mechanics Analysis of Transverse Cracking Evolution in Delaminated CFRP Laminates"Journal of Reinforced Plastics and Composites. Vol. 18(15). 1360-1366 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] OKABE, Y., TAKEDA, N., SEKIGUCHI, M.: "Macroscopic and Microscopic Elastic Constant Measurements of Ceramic Matrix composites Using Ultrasonic Waves"Journal of Composites Materials. Vol. 33(18). 1743-1755 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] OKABE, Y., KOMOTORI, J., SHIMIZU, M., TAKEDA, N.: "Mechanical Behavior of SiC Fiber Reinforced Brittle-Matrix Composites"Journal of Materials Science. Vol. 34. 3405-3412 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] N.Takeda, S.Kobayashi, S.Ogihara, A.Kobayashi: "Effects of toughened interlaminar layers on fatigue damage progress in quasi-isotropic CFRP laminates"International Journal of Fatigue. 21(3). 235-242 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Takeda,M.Kiriyama: "Matrix-crack evolution in SiC fiber/glass matrix cross-ply laminates"Composites : Part A. 30(4). 593-597 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] S.Ogihara, N.Takeda, S.Kobayashi, A.Kobayashi: "Effects of stacking sequence on microscopic fatigue damage development in quasi-isotropic CFRP laminates with interlaminar-toughened layers"Composites Science and Technology. 59(9). 1387-1398 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Okabe, N.Takeda, J.Komotori, M.Shimizu, W.A.Curtin: "A new fracture mechanics model for multiple matrix cracks of SiC fiber reinforced brittle-matrix composites"Acta Materialia. 47(17). 4299-4309 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Takeda, L.N.Mccartney, S.Ogihara: "The application of a ply-refinement technique to the analysis of microscopic deformation in interlaminar-toughened laminates with transverse cracks"Composites Science and Technology. 60(2). 231-240 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] S.Kobayashi, N.Takeda, S.Ogihara, A.Kobayashi: "Damage mechanics analysis of transverse cracking evolution in delaminated CFRP laminates"Journal of Reinforced Plasticsand Composites. 18(15). 1360-1366 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Okabe, N.Takeda, M.Sekiguchi: "Macroscopic and microscopic elastic constant measurements of ceramic matrix composites using ultrasonic waves"Journal of Composite Materials. 33(18). 1743-1755 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Okabe, J.Komotori, M.Shimizu,N.Takeda: "Mechanical behavior of SiC fiber reinforced brittle-matrix composites"Journal of Materials Science. 34. 3405-3412 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Takeda,S.Kobayashi,S.Ogihara,A.Kobayashi: "Experimental Characterization of Microscopic Damage Progress in Quasi-Isotropic CFRP Laminates-Effect of Interlaminar-Thoughened Layers" Advanced Composite Materials. 7(2). 183-199 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] N.Takeda,S.Ogihara,N.Nakata,A.Kobayashi: "Characterization of Microscopic Failure Process and Deformation in Glass/Nylon Composites by Micro-Grid Method" Composite Interfaces. 5(4). 305-321 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] N.Takeda,S.Ogihara: "Micromechanical Characterrization of Local Deformation in Interlaminar-Toughened CFRP Laminates" Composites: Part A. 29A. 1545-1522 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] S.Ogihara,N.Takeda,A.Kobayashi: "Transverse Cracking in CFRP Laminates with Interlaminar Resin Layers" Advanced Composites Materials. 7(4). 347-364 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 岡部 朋永、武田 展雄、今井 克広、小茂鳥 潤 他2名: "一方向SiC繊維強化耐熱がラス基複合材料における損傷進展過程" 日本機械学会論文集(A編). 64(627). 2931-2937 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 荻原慎二, 武田展雄, 小林昭: "トランスバースクラックを有する層間高靭性化複合材料積層板の応力および変位場解析" 日本機械学会論文集(A編). Vol.63 No.610. 1219-1225 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 荻原慎二, 鈴木信彦, 武田展雄, 小林昭: "層間高靭性化CFRP積層板のトランスバースクラック近旁の微視的変形メカニズム" 材料システム. 16. 135-141 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 荻原慎二, 武田展雄, 小林訓史, 小林昭: "複合材料積層板におけるトランスバースクラックの損傷力学解析" 材料. Vol.47 No.1. 68-72 (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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