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Benchmark Tests for the Improvement of Accuracy in the Numerical Analyses of Metal-Forming Processes

Research Project

Project/Area Number 62302053
Research Category

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

Allocation TypeSingle-year Grants
Research Field 金属加工(含鋳造)
Research InstitutionTokyo Institute of Technology

Principal Investigator

JIMMA Takashi  Tokyo Institute of Technology, Research Laboratory of Precision Machinery & Electronics, Professor, 精密工学研究所, 教授 (40016291)

Co-Investigator(Kenkyū-buntansha) YOKOUCHI Yasuto  University of Electro-Communications, Faculty of Electro-Communications, Associa, 電気通信学部, 助教授 (50013214)
MAKINOUCHI Akitake  The RIKEN Institute, Research Scientist, 研究員 (80087460)
TOMITA Yoshihiro  Kobe University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (10031147)
GOTOH Manabu  Gifu University, Faculty of Engineering, Professor, 工学部, 教授 (60023165)
KAWAI Ken'ichi  Yokohama National University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (60114972)
加藤 和典  東京工業大学, 工学部, 教授 (80016419)
Project Period (FY) 1987 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥10,300,000 (Direct Cost: ¥10,300,000)
Fiscal Year 1989: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1988: ¥3,900,000 (Direct Cost: ¥3,900,000)
Fiscal Year 1987: ¥3,900,000 (Direct Cost: ¥3,900,000)
KeywordsBenchmark test / Elastic-Plastic FEM / Rigid-Plastic FEM / Tension / Shear / Bending / Ring Compression / 剛塑性FEM / ベンチマークテスト / 有限要素法解析 / 塑性加工 / 塑性変形 / 両端固定 / 板のせん断 / 両端固定ブロックのせん断 / 両端固定棒の引張り / 両端固定薄板の引張り
Research Abstract

As the first benchmark test, "axisymmetric, plane strain and plane stress unusual tension of a bar with both ends fixed" was examined on the FEM codes owned by every participant to this project; mesh division and element type, constitutive equations, and an incremental value of deformation per one step were unified for all the FEM codes. As a result, plane stress tension was found to be sensitive to the above calculation conditions and thus as the second benchmark test, "unusual tension of sheet metal (plane stress) with both ends fixed" was conducted more precisely. In the course of the first and second benchmark tests, the FEM codes of the participants were checked and standardized; consequently, a good accord with each other's calculated results was attained. As the third benchmark test, "simple shear of sheet metal (plane stress) and block (plane strain) with both ends fixed" was conducted in order to check the effects of rigid body rotation on the calculated values of stress. Furt … More hermore, as the forth benchmark test "ring compression", a typical test which includes frictional boundary conditions, was carried out, and as the fifth benchmark test "plane strain bending of plate" was done in order to clarify causes of the unbalance of moment of force occurring as large deformation proceeds. The crude calculated results obtained through the first to fifth benchmark tests were tabulated and collected as a standardized database for checking the accuracy of numerical analyses of metal-forming processes. Further investigation has been hoped for the forth and fifth benchmark tests.
As basic research on plastic deformation analyses of metal-forming processes, a serial commentary on plastic constitutive equations was published in the Journal of Japan Society for Technology of Plasticity, being related to sbrain-rate dependency, temperature dependency, anisotropy, and bifurcation of deformation. Several subjects known to cause problems in elastic-plastic and rigid-plastic FEM analyses, such as mesh geometry, mesh division, number of integral points, incremental values of deformation, and methods of smoothing the material deformation around tool-edge, were also examined. Causes of the unbalance of moment of force occurring in bending problems were investigated using a single mesh model of a 2-D linear triangle element. Less

Report

(4 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • 1987 Annual Research Report
  • Research Products

    (26 results)

All Other

All Publications (26 results)

  • [Publications] T.Jimma,Y.Tomita,S.Shimamura.: "Benchmark Test on a Plastic Deformation Problem,Application of Numerical Methods of Analysis to the Uniaxial Tension of a Block or Cylindrical Bar with Both Ends Fixed." Proc.2nd Int.Conf.on Technology of Plasticity,(Ed.K.Lange). 1. 73-80 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 後藤学: "改良形J2DとしてのMG構成式の簡易化と大変形弾塑性FEM解析などによる検討" 日本機械学会論文集. 55. 1374-1381 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 冨田佳宏,進藤明夫,朝田誠治: "ひずみ速度依存性平面ひずみブロックの変形挙動" 日本機械学会論文集. 55. 1382-1388 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 後藤学: "J2F/J2Dの改良と大変形弾塑性FEM解析への組み込み方" 日本機械学会論文集. 55. 2080-2085 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] A.Makinouchi,S.D.Liu: "Finite element analysis of contact problems at finite elasto-plastic deformation" Proc.of the 3rd Int.Conf.on Numerical Forming Processes. 26. 197-202 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 川井謙一: "Report on the Bench-Mark Test in Japan" Proc.3rd International Conference on Technology of Plasticity(発行予定). (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] T.Jimma, Y.Tomita, S.Shimamura: "Benchmark Test on a Plastic Deformation Problem, Application of Numerical Methods of Analysis to the Uniaxial Tension of a Block or Cylindrical Bar with Both Ends Fixed" Proceedings of 2nd International Conference on Technology of Plasticity. 1. 73-80 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M.Gotoh: "Revised Forms of MG-Constitutive Equation as Improvement of J2D, and Its Application to Large Elastic-Plastic Deformation Analyses by FEM" Transactions of the Japan Society of Mechanical Engineers. 55. 1374-1381 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Y.Tomita, A.Shindo, S.Asada: "Deformation Behavior of a Strain Rate and Temperature Sensitive Block under Plane Strain Tension" Transactions of the Japan Society of Mechanical Engineers. 55. 1382-1388 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M.Gotoh: "Some Improvements of J2F/J2D and Their Applications to Large Elastic-Plastic Deformation Analyses by FEM" Transactions of the Japan Society of Mechanical Engineers. 55. 2080-2085 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] A.Makinouchi, S.D.Liu: "Finite Element Analysis of Contact Problems at Finite Elasto-Plastic Deformation" Proceedings of 3rd International Conference on Numerical Forming Processes. 26. 197-202 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] K.Kawai: "Report on the Bench-Mark Test in Japan" Proceedings of 3rd International Conference on Technology of Plasticity. (1990, To be published.)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 富田佳宏,進藤明夫,朝田誠治,後藤広和: "ひずみ速度依存性平面ひずみブロックの引張変形挙動の解析" 日本機械学会論文集. 55. 1124-1130 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 後藤学: "改良形J2DとしてのMG構成式の簡易化と大変形弾塑性FEM解析などによる検討" 日本機械学会論文集. 55. 1374-1381 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 富田佳宏,進藤明夫,朝田誠治: "ひずみ速度依存性平面ひずみブロックの変形挙動" 日本機械学会論文集. 55. 1382-1388 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 後藤学: "J2F/J2Dの改良と大変形弾塑性FEM解析への組み込み方" 日本機械学会論文集. 55. 2080-2085 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] A.Makinouchi,S.D.Liu: "Finite element analysis of contact problems at finite elasto-plastic deformation" Proc.of the 3rd Int.Conf.on Numerical Forming Processes. 26. 197-202 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 川井謙一: "Report on the Bench-Mark Test in Japan" Proc.3rd International Conference on Technology of Plasticity. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 島進: 塑性と加工. 29. 681-687 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 牧野内昭武: 塑性と加工. 29. 997-1003 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 後藤学: 機械学会論文集A. 54. 1579-1587 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 川井謙一: 第113回塑性加工シンポジウム『有限要素法による板材成形シミュレーション』テキスト. 61-77 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] T.Jimma;Y.Tomita;S.Shimamura;Ed.K.Lange: Proc.2nd Int.Conf.on Technology of Plasticity. 1. 73-80 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 川井謙一: 塑性と加工. 28. 773-782 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 後藤學: 塑性と加工. 28. 993-998 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 伊藤耿一: 塑性と加工. 28. 1222-1229 (1987)

    • Related Report
      1987 Annual Research Report

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Published: 1987-04-01   Modified: 2016-04-21  

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