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A Study on the Application of Inelastic Constitutive Relations under Plasticity-Creep Interaction and the Evaluation of Life Prediction Methods

Research Project

Project/Area Number 01302026
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 材料力学
Research InstitutionKyoto University

Principal Investigator

INOUE Tatsuo  Kyoto University, Department of Mechanical Engineering, professor, 工学部, 教授 (10025950)

Co-Investigator(Kenkyū-buntansha) IGARI Toshihide  Mitsubishi Heavy Industries, Ltd., Nagasaki Research Institute, Researcher, 長崎研究所, 研究員
KAWAI Masamichi  University of Tsukuba, Division of Structure Engineering, Lecturer, 構造工学系, 講師 (90169673)
YOSHIDA Fusahito  Hiroshima University, Division 1, Assoc, Prof., 工芸部, 助教授 (50016797)
OHNO Nobutada  Nagoya University, Department of Mechanical Engineering, Assoc, Prof., 工芸部, 助教授 (30115539)
IMATANI Shoji  Kyoto Institute of Technology, Department of Mechanical Systems, Assoc. Prof., 工芸学部, 助教授 (70191898)
新津 靖  東京工学大学, 精密工学研究所, 助手 (70143659)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥11,100,000 (Direct Cost: ¥11,100,000)
Fiscal Year 1990: ¥4,000,000 (Direct Cost: ¥4,000,000)
Fiscal Year 1989: ¥7,100,000 (Direct Cost: ¥7,100,000)
KeywordsPlasticity-creep Interaction / Fatigue-creep Interaction / Inelastic Constitutive Relation / Life Prediction / Finite Element Analysis / Unified Constitutive Relation / 塑性-クリ-プ相互作用 / 高温非弾性変形
Research Abstract

The first Part of this report covers the extension of the second phase project, and presents more developed results on the applicability of the constitutive models and life prediction methods, respectively, to the multiaxial stress state of combined tension-compression and cyclic torsion. The results of analysis were compared with the experimental data.
The motivation of the second part concern the third phase of the project which arises from engineering requirement that the schemes are to be used for practical design purposes : Applicability of the inelastic constitutive models to finite element calculation is examined by comparing the analytical stress/strain response near notch root of the bar with experimental results, and fatigue-creep lives of the specimen are evaluated by applying the life prediction methods.
Four loading patterns such as creep loading, fast-fast and slow-slow cyclic straining and fast-fast cyclic straining with a tension hold-time were applied to the specimen. The results of analysis of stress/strain simulation were compared with measured strain at notch root by means of "Strain-Pecker", a capacitance type extensometer for high temperature use. The predicted crack initiation Life was also confirmed by the experimental lives which were detected by a direct current potential drop technique, and failure life was defined as the cycles of 25% stress drop from saturation.

Report

(3 results)
  • 1990 Annual Research Report   Final Research Report Summary
  • 1989 Annual Research Report
  • Research Products

    (25 results)

All Other

All Publications (25 results)

  • [Publications] S.Imatani: "An Anisotropic Yield Function accounting for History Effects" Proceedings of the IUTAM/ICMSymposium on Yielding,Damage,and Failure of Anisotropic Solids. 729-745 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 井上 達雄: "組合せ荷重の負荷様式と多軸応力下における材料の力学的挙動" 材料. 38. 1231-1240 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 高温強度部門委員会 非弾性解析調査作業グル-プ: "多軸応力を受ける2・1/4Crー1Mo網の高温における非弾性構成式と寿命" 材料. 39. 476-482 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Inoue: "Evaluation of Inelastic Constituve Models under Plasticitycreep Interaction in Multiaxial stress State" Nuclear Engineering and Design. 126. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Inoue: "Evaluation of Fatigueーcreep Life Prediction Methods in Multiaxial Stress state" Nuclear Engineering and Design. 126. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Inoue: "Thermal Stresses III (Editted by Richard B.Hetnarski)" NorthーHolland, 556 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T.Inoue: "High Temperature CreepーfatifueーーCurrent Japanese Materials Research (Coーedited by R.Ohtani,M.Ohnami and T.Inoue)" Elsevier Applied Science, 228 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] S. Imatani, M, Teraura and T. Inoue: "An Anisotropic Yield Function accounting for History Effects" IUTAM/ICM Symposium on Yielding, Damage, and Failure of Anisotropic Solids. 729-745 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Inoue and T. Hoshide: "Modes of Combined Loading and Mechanical Behaviol of Materials under Multiaxial Stresses" Journal of Materials Science, Japan. vol. 38 , No. 434. 1231-1240 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Subcommittee on Inelastic Analysis and Life Prediction: "JSMS Inelastic Constitutive Models snd Life Predicting Methods for 2.1/4Cr-1Mo Steel under Multiaxial stresses at High temperature" Journal of Materials Science, Japan. vol. 39, No. 440. 476-482 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Inoue, F. Yoshida, N. Ohno, M. Kawai, Y. Niitsu and S. Imatani: "Evaluation of Inelastic Constitutive Models under Plasticity-creep Interaction in Multiaxial stress State" Nuclear Engineering and Design. vol. 126. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Inoue, M. Okazaki, T. Igari, M. Sakane and S. Kishi: "Evaluation of Fatigue-creep Life Prediction Methods in Multiaxial Stress State" Nuclear Engineering and Design. vol. 126. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] T. Inoue and S. Imatani: "Inelastic Constitutive Relationship of High temperature Material under Creep-Plasticity Interaction Conditions" High Temperature Creep-fatigue-- Current Japanese Materials Research Vol. 3(Co-edited by R. Ohtani, M. Ohnami and T. Inoue, 1989, Elsevier Applied Science).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] S.Imatani: "An Anisotropic Yield Function accounting for History Effects" Proceedings of the IUTAM/ICMSymposium on Yielding,Damage,and Failure of Anisotropic Solids. 729-745 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 井上 達雄: "組合せ荷重の負荷様式と多軸応力下における材料の力学的挙動" 材料. 38. 1231-1240 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 高温強度部門委員会 非弾性解析調査作業グル-プ: "多軸応力を受ける2・1/4Crー1Mo鋼の高温における非弾性構成式と寿命" 材料. 39. 476-482 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Inoue: "Evaluation of Inelastic Constituve Models under Plasticityーcreep Interaction in Multiaxial stress State" Nuclear Engineering and Design. 126. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Inoue: "Evaluation of Fatigueーcreep Life Prediction Methods in Multiaxial Stress state" Nuclear Engineering and Design. 126. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Inoue: "Thermal Stresses III (Editted by Richard B.Hetnarski)" NorthーHolland, 556 (1988)

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Inoue: "High Temperature CreepーfatigueーーCurrent Japanese Materials Research (Coーedited by R.Ohtani,M.Ohnami and T.Inoue)" Elsevier Applied Science, 228 (1989)

    • Related Report
      1990 Annual Research Report
  • [Publications] Tatsuo Inoue: "Plasticity-creep behavior of 2・1/4Cr-IMo Steel at 600℃ in Multiaxial Stress State:Benchmark(A)by IALIPS" Proc.Pressure Vessels and Piping,ASME. 163. 101-107 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tatsuo Inoue: "Fatigue-creep Life Prediction of2・1/4Cr-IMo Steel at 600℃ in Multiaxial Stress State:Benchmark(B)by IALIPS" Proc.Pressure Vessels and Piping,ASME. 163. 109-114 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] Tatsuo Inoue: "Evaluation of Inelastic Constitutive Models under Plasticity-creep Interaction in Multiaxial Stress State" Nuclear Engineering and Design.

    • Related Report
      1989 Annual Research Report
  • [Publications] Tatsuo Inoue: "Finite Element Application of a Time-dependent Inelastic Consti-tutive Equation to Inelastic Response of Notched Component" Proc.3rd.Int.conf.Technol.Plasticity. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 井上達雄: "統一型非弾性構成式に基づく有限要素法と環状切欠き材の変形解析への適用" 材料.

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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