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Strength Deterioration of Thin-walled Structures due to Localization of Plastic Buckling Patterns under Cyclic Loading

Research Project

Project/Area Number 06650517
Research Category

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

Allocation TypeSingle-year Grants
Research Field 構造工学・地震工学
Research InstitutionNagoya Institute of Technology

Principal Investigator

GOTO Yoshiaki  Nagoya Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (90144188)

Co-Investigator(Kenkyū-buntansha) OBATA Makoto  Nagoya Institute of Technology, Faculty of Engineering, Associate Professor, 工学部, 助教授 (30194624)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1995: ¥400,000 (Direct Cost: ¥400,000)
Keywordslocalization / thin-walled structure / seismic design / plastic bifurcation / cyclic loading / steel structure
Research Abstract

The effect of constitutive models on the localization behavior of thin-walled structures was investigated by making use of the computer program developed last year. In addition, the cyclic localization of axi-symmetric buckling patterns of thick cylindrical shells was investigated by analysis and experiment with special emphasis on its effect on the deformation capacity. The results so obtained are summarized in the following.
1)Effect of constitutive models on the localization behavior of compression plates
a. The compression plates with the bi-linear constitutive model exhibit localization phenomena under smaller in-plane displacements, compared to those with the two-surface constitutive model.
b. Initial displacements of the plates with the two-surface constitutive model have some effect on the cyclic localization behavior.
2)Effect of localization behavior on the reduction of deformation capacity of thick cylindrical shells
a. The analysis method proposed by authors well simulate the localization behavior of thick cylindrical shells shown by the experiment.
b. The cylindrical shells with larger radius-thickness ratio (R/t) and length-radius ratio (L/R) exhibit a larger load drop when the localization occurs.
c. The effect of the constitutive models is significant in the localization behavior under cyclic loading.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] Yoshiaki Goto: "Strength deterioration of rectangular compression plate due to cyclic localization of buckling patterns" Proc.of ICSS. I. 233-240 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Goto.: "Localization of Buckling Patterns under Cyclic Loading" Proc.of WCCM III. Vol.II. 1255-1256 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Goto: "Localization of Plastic Buckling Patterns under Cyclic Loading" J.of Engineering Mechanics. Vol.121, No.4. 493-501 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Goto: "Ductility and Strength Deterioration of Rectangular Compression Plate due to Localization of Plastic Buckling Patterns" Proc.of JSCE. No.513/I-31. 39-51 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Goto: "Strength Deterioration of Rectangular Compression Plate due to Cyclic Localization of Buckling Patterns" Proc.of ICSS. Vol.I. 233-244 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yoshiaki Goto: "Strength deterioration of rectangular compression plate due to cyclic localization of buckling patterns" Proc. of ICSS. I. 233-240 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Yoshiaki Goto: "Localization of Buckling Patterns under Cyclic Loading" Proc.of WCCMIII. II. 1255-1256 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yoshiaki Goto: "Localization of Plastic Buckling Patterns under Cyclic Loading" Jounral of Engineering Mechanics,ASCE. 121(掲載予定). (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] 後藤,芳顯: "圧縮板の塑性座屈モードの局所化と変形能の低下" 土木学会論文集. 5109/I-31(掲載予定). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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