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Analysis of Compressive Strength of Composite Materials after Impact

Research Project

Project/Area Number 02650310
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 船舶構造・建造
Research InstitutionThe University of Tokyo

Principal Investigator

KAGEYAMA Kazuro  The University of Tokyo, Faculty of Engineering, Associate Professor, 工学部, 助教授 (50214276)

Co-Investigator(Kenkyū-buntansha) OHASAWA Isamu  The University of Tokyo, Faculty of Engineering, Assistant Researcher, 工学部, 助手 (00143389)
SUZUKI Tosio  The University of Tokyo, Faculty of Engineering, Assistant Researcher, 工学部, 助手 (20010895)
KIMPARA Isao  The University of Tokyo, Faculty of Engineering, Professor, 工学部, 教授 (50011101)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1991: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1990: ¥1,400,000 (Direct Cost: ¥1,400,000)
KeywordsComposites / CFRP Fracture / Delamination / Compression / Crack Grouth / Postbuckling / Finite Element Analysis / 有限要素解析 / 破壊靭性
Research Abstract

An embedded through-width delamination (ETWD) sandwich column specimen has been developed and applied to characterization of the post-buckled delamination. Theoretical analysis based on the elastic beam theory and finite element analysis have been carried out in order to investigate the post-buckled delamination. The effect of the mixed mode loading on the critical condition of delamination growth has been also examined and the critical stress is calculated based on the linear elastic fracture mechanics. Onset of the local buckling in the delaminated laminate, the critical load of the delamination growth and propagation of delamination have been investigated experimentally. The analytical results have been compared with the experimental results, and a damage tolerance estimation method has been proposed by using mode I and II interlaminar fracture toughness of composite laminate.

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 影山 和郎,金原 勲,鈴木 敏夫,大沢 勇,他: "先進複合材料の損傷許容性評価に関する研究 第2報層間はく離を有する積層板の圧縮特性" 日本造船学会論文集. 170.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Kageyama and I.Kimpara: "Delaminaition Failures in Polymer Composites" Mater.Sci.& Engng.A143. 167 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] K.Kageyama,M.Kikuchi and N.Yanagisawa: "Stabilized End Notched Flexure Test Characterization of Mode II Interlaminar Crack Growth" ASTM STP. 1110. 210 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 影山 和郎,金原 勲,鈴木 敏夫,大沢 勇,他: "先進複合材料の損傷許容性評価に関する研究 第2報 層間はく離を有する積層板の圧縮特性" 日本造船学会論文集. 170. (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Kageyama and I.Kimpara: "Delamination Failures in Polymer Composites" Mater.Sci.&Engng.A143. 167 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] K.Kageyama,M.Kikuchi and N.Yangaigisawa: "Stabilized End Notched Flexure Test Characterization of Mode II Interlaminar Carack Growth" ASTM STP. 1110. 210 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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