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Study on development of fatigue life prediction system based on neutron strain scanning method

Research Project

Project/Area Number 12555023
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Materials/Mechanics of materials
Research InstitutionNagoya University

Principal Investigator

TANAKA Keisuke  Nagoya Univ., Grad.School of Eng., Professor, 工学研究科, 教授 (80026244)

Co-Investigator(Kenkyū-buntansha) MORII Yukio  JAERI, Adv.Sci.Res Center, Researcher, 先端基礎研究センター, 研究員
AKINIWA Yoshiaki  Nagoya Univ., Grad.School of Eng., Assoc.Professor, 工学研究科, 助教授 (00212431)
HAYASHI Makoto  Hitachi Co.Ltd., Div.Atomic Energy, Researcher, 原子力事業部, 研究員
KIMURA Hidehiko  Nagoya Univ., Grad.School of Eng., Res.Assciate, 工学研究科, 助手 (60345923)
來海 博央  名古屋大学, 工学研究科, 助手 (30324453)
田中 拓  名古屋大学, 難処理人工物研究センター, 講師 (80236629)
林 真琴  (株)日立製作所, 機械研究所, 研究員
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥13,000,000 (Direct Cost: ¥13,000,000)
Fiscal Year 2002: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 2001: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2000: ¥9,100,000 (Direct Cost: ¥9,100,000)
KeywordsNeutron diffraction / Residual stress / Fatigue / X-ray stress measurement / Composite materials / Crack / Diffraction elastic constant / Synchrotron radiation / ショットピーニング
Research Abstract

1. The loading stress in sample specimens was measured by the neutron diffraction method to check the accuracy of the measured stress value. The diffraction elastic constants can be estimated from the single crystal elastic constants by combining Kroner model with the self-consistent model. In the plastic range, plastic anisotropy should be taken into account for stress determination. A new method is proposed to determine the strain-free lattice spacing.
2. The microstress and macrostress can be evaluated separately by the neutron method. Several applications of the method to composites showed those stresses which agreed with the theoretical predictions baed on Esheby inclusion mechanics.
3. A scanning method was proved to be useful to measure the distribution of strain within the bulk samples. Because of a low intensity of neutron sources, the minimum volume that can be measured by the neutron method was 2mm cube. The improvement of the special resolution is necessary to determine steep stress gradients.
4. The neutron diffraction system developed by the present method was successfully applied to measure the residual stress distributions in several engineering materials and components.
5. To measure the stress very near the surface, "the surface effect" will cause the error of the measured stress. The small divergence of the beam is effective to reduce this effect.
6. High energy X-rays from synchrotron radiation will be a useful method to measure the stress distribution near the surface. A combination of the neutron method with high-energy and laboratory X-rays will be a promising new toll for nondestructive measurements of residual stress distributions.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (33 results)

All Other

All Publications (33 results)

  • [Publications] Keisuke Tanaka: "Neutron Diffraction Measurements of Loading and Residual Stresses"Materials Science Research International. STP No.1. 412-417 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yoshiaki Akiniwa: "Thermal Residual Stress in Ceramic Composites Measured by Neutron Diffraction"Materials Science Research International. STP No.1. 427-430 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Shinobu Okido: "Evaluation of Residual Stress Redistribution Behavior with Crack Extension"Materials Science Research International. STP No.1. 435-438 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 林 眞琴: "中性子回折による構造物内部の残留応力測定"日本機械学会論文集(A編. 67・655. 363-369 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 斎藤 徹: "中性子回折法による無ひずみ状態の格子面間隔測定に関する測定技術の開発"材料. 50・7. 701-706 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Keisuke Tanaka: "Neutron Diffraction Measurements of Residual Stresses in Engineering Materials an Components"Materials Science Research International. 8・4. 701-706 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Kazuko Inoue, Hisakazu Kawashima, Junya Sakaguchi, Nobuaki Minagawa, Yoshinori Tsuchiya and Yukio Morii: "Neutron Diffraction Measurement and Finite Element Calculation of Residual Stress of a Heat Treated Steel Pipe"Japanese Journal of Applied Physics. Vol.39, Part 1, No.10. 6652-6657 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Makoto Hayashi, Masayuki Ishiwata, Yukio Morii, Nobuaki Minagawa and John H.Root: "Residual Stress Distribution in Carbon Steel Pipe Welded Joint Measured by Neutron Diffraction"Materials Science Research International. Vol.6, No.4. 287-294 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yoshiaki Akiniwa, Keisuke Tanaka, Nobuaki Minagawa and Yukio Morii: "Neutron Diffraction Study of Thermal Residual Stress in Ceramic Composites"Materials Science Research International. Vol.6, No.4. 281-286 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Keisuke Tanaka and Yoshiaki Akiniwa: "Neutron Diffraction Measurements of Loading and Residual Stresses"Materials Science International, Special Technical Publication. No.1. 412-417 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Makoto Hayashi, Shinobu Ohkido, Yukio Morii and Nobuaki Minagawa: "Measurement of Residual Stress in Structural Components by Neutron Diffraction"Materials Science International, Special Technical Publication. No.1. 418-423 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yoshiaki Akiniwa, Keisuke Tanaka, Nobuaki Minagawa and Yukio Moriia: "Thermal Residual Stress in Ceramic Composites Measured by Neutron Diffraction"Materials Science International, Special Technical Publication. No.1. 427-430 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Shinobu Okido, Makoto Hayashi, Yukio Morii and Nobuaki Minagawa: "Evaluation of Residual Stress Redistribution Behavior with Crack Extension"Materials Science International, Special Technical Publication. No.1. 435-438 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Keisuke Tanaka and Yoshiaki Akiniwa: "Neutron Diffraction Measurements of Microstress and Macrostress in Composites"Journal of Physical Society of Japan. Vol.79, Supplement A. 509-513 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Keisuke Tanaka, Yoshiaki Akiniwa, Kenji Suzuki, Etsuya Yanase, Kouji Nisho, Yukihiro Kusumi and Kazuo Arai: "Neutron Diffraction Measurements of Residual Stresses in Engineering Materials and Components"Materials Science Forum. Vol.404-407. 341-348 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Keisueke Tanaka and Yoshiaki Akiniwa: "Neutron Diffraction Measurements of Residual Stresses in Engineering Materials and Components"Materials Science Research International. Vol.8, No.4. 19-21 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Keisuke Tanaka: "High-Energy X-Ray Synchrotron Radiation Analysis of Residual Stress Distribution of Shot-Peened Steel"Materials Science Forum. 404-407. 703-708 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 柳瀬 悦也: "放射光高エネルギX線を用いたショットピーニング処理した鉄鋼の残留応力の評価"材料. 51・7. 756-763 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 皆川 宣明: "中性子回折法による試料端部の測定"第38回X線材料強度に関するシンポジウム講演論文集. 38. 202-205 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 齋藤 徹: "曲げ応力を負荷したSiモノクロ単結晶内部の中性子による応力分布測定"第38回X線材料強度に関するシンポジウム講演論文集. 38. 206-210 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 鈴木 賢治: "放射光高エネルギーX線によるボンドコート層の高温内部応力測定"放射光. 15・6. 19-25 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Keisuke Tanaka: "Neutron Diffraction Measurements of Residual Stresses in Engineering Materials and Components"Materials Science Research International. 8・4. 19-21 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Keisuke Tanaka: "Neutron Diffraction Measurements of Loading and Residual Stresses"Materials Science Research International. STP No.1. 412-417 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Makoto Hayashi: "Measurement of Residual Stress in Structural Components by Neutron Diffraction"Materials Science Research International. STP No.1. 418-423 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshiaki Akiniwa: "Thermal Residual Stress in Ceramic Composites Measured by Neutron Diffraction"Materials Science Research International. STP No.1. 427-430 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Shinobu Okido: "Evaluation of Residual Stress Redistribution Behavior with Crack Extension"Materials Science Research International. STP No.1. 435-438 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 林 眞琴: "中性子回折による構造物内部の残留応力測定"日本機械学会論文集(A編). 67・655. 363-369 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 斎藤 徹: "中性子回折法による無ひずみ状態の格子面間隔測定に関する測定技術の開発"材料. 50・7. 701-706 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Yoshiaki Akiniwa : "Neutron Diffraction Study of Thermal Residual Stress in Ceramic Composites"Materials Science Research International. 6・4. 281-286 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 秋庭義明: "中性子回折法によるセラミックス複合材料の熱残留応力測定"材料. 49・7. 742-747 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] KeisukeTanaka: "Effect of Secondary Phase on Diffraction Elastic Constants of Polycrystalline Materials"Proceeding of the Sixth International Conference on Residual Stresses. 1012-1019 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kazuko Inoue: "Neutron Diffraction Measurement and Finite Element Calculation of Residual Stress of a Heat Treated Steel Pipe"Jpn.J.Appl.Phys.. 39. 6652-6657 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 皆川宣明: "IN718ショットピーニングの中性子回折法による残留応力測定"第36回X線材料強度に関するシンポジウム講演論文集. 36. 263-265 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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