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A Study on an Intelligent Optimum Material Design System for Utilization of the Anisotropy of Composite Materials

Research Project

Project/Area Number 63550070
Research Category

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

Allocation TypeSingle-year Grants
Research Field 機械材料工学
Research InstitutionUniversity of Osaka Prefecture

Principal Investigator

MIKI Mitsunori  Univ. of Osaka Prefecture, Aerospace Engineering, Associate Professor, 工学部, 助教授 (90150755)

Co-Investigator(Kenkyū-buntansha) SUGIYAMA Yoshihiko  Univ. of Osaka Prefecture, Aerospace Engineering, Associate Professor, 工学部, 教授 (90032268)
MUROTSU Yoshisada  Univ. of Osaka Prefecture, Aerospace Engineering, Associate Professor, 工学部, 教授 (50081386)
Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1989: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1988: ¥1,800,000 (Direct Cost: ¥1,800,000)
KeywordsComposite Materials / Anisotropy / Material Design / Optimum Design / Artificial Intelligence / Expert System / エキスパートシステム / オブジェクト指向
Research Abstract

For the complete utilization of the anisotropy of composite materials, the following aspects are necessary to study: 1) the construction of the design method for structures with the anisotropy in structural mechanics, 2) the development of the theoretical method for designing anisotropy in the material, and 3) the development of an expert system which yields practical aid for structural designers. From these points of view, the research has been conducted as follows:
(1) Functional Deformation : The methods for designing a material with negative Poisson's ratio and a structure which has a specified bending-torsion coupling deformation were constructed. Good agreement was found between the analytical and the experimental results. An application of the methods a cantilevered pipe which yields torsional angle of zero at the tip under torsional loading.
(2) Optimum Material Design Based on Strain Energy : The bending stiffness of plates are maximized by making its strain energy minimum. Optimum orientation angle of a plate was obtained using this approach for any loading conditions.
(3) Optimum Material Design Based on Reliability : It was found that optimum fiber orientation angles under deterministic loading conditions are different from those under probabilistic loading conditions. For probabilistic loading conditions, optimum orientations were obtained using the AFOSM ( advanced first-order second-moment method. Additionally an analytical method for determining optimum angles based on rehability has been proposed. The method is very effective in evaluating the relative value of the reliability.
(4) Material Design System with Artificial Intelligence : The knowledges for optimum material design were analyzed and classified, and their hierarchical structures were constructed. The representation of the knowledge was performed by using object-oriented language, Smalltalk, and a trial expert system for composites design has been successfully developed.

Report

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

    (28 results)

All Other

All Publications (28 results)

  • [Publications] Mitsunori Miki(三木光範): "Reliability of Unidirectional Composites" AIAA Journal.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 三木光範: "複合材料の最適設計への信頼性概念の適用" 材料. 39. 32-37 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 三木光範: "繊維複合材料平板の最大曲げ剛性設計" 材料. 39. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki(三木光範): "Database Management System for Composite Materials" Proc. Japan-France Composite Seminar COMP-'90(1990). (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki(三木光範): "Optimum Fiber Angle of Unidirectional Composites for Load with Variations" Proc. AIAA 3lst Structures,Structural Dynamics and Materials Conference(1990). (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 三木光範: "オブジェクト指向による複合材料の力学的解析" 日本機械学会論文集.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 日本機械学会編: "構造・材料の最適設計" 技報堂出版, 262 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshihiko Sugiyama: "Expert System for Composite Structural Design with Object-Oriented Language" Proc. 7th International Conference on Composite Materials, 398-403 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshihiko Sugiyama, Tetsuo Tanaka: "Optimum Fiber Angle of Unidirectional Composites for Load with Variations" Proc. 31st Structures, Structural Dynamics and Materials Conference, in print (1990).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshihiko Sugiyama, Tetsuo Tanaka, Shaowen Sao: "Reliability of the Strength of Unidirectional Fibrous Composites" Proc. 30th Structures, Structural Dynamics and Materials Conference, 1032-1041 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshisada Murotsu: "The Peculiar Behavior of the Poisson's Ratio of Laminated Fibrous Composites" JSME International Journal, Series I, vol.32, No.1 67-72 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki: "Optimum Material Design" Zairyu, vol.32, No.425, 193-199 (1989).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshisada Murotsu, Tetsuo Tanaka, Shaowen Shao: "Reliability Concept Applied to Optimum Configuration of Fibrous Composites" Reliability and Optimization of Structural Systems'88 (P.Thoft-Christensen ed.), 201-212 (1988).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshihiko Sugiyama, Ken'ichi Sakurai: "Maximum Stiffness Design of Composite Plates" Zairyo, vol.39, No.438, in print (1990).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki, Yoshio Minoda: "Database Management System for Composite Materials" Proc. Japan-France Composite Seminar COMP'90, in print (1990).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] Mitsunori Miki(三木光範): "Reliability of Unidirectional Composites" AIAA Journal.

    • Related Report
      1989 Annual Research Report
  • [Publications] 三木光範: "複合材料の最適設計への信頼性概念の適用" 材料. 39. 32-37 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 三木光範: "繊維複合材料平板の最大曲げ剛性設計" 材料. 39. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Mitsunori Miki(三木光範): "Database Management System for Composite Materials" Proc.Japan-France Composite Seminar COMP-'90(1990). (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] Mitsunori Miki(三木光範): "Optimum Fiber Angle of Unidirectional Composites for Load with Variations" Proc.AIAA 31st Structures,Structural Dynamics and Materials Conference(1990). (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 三木光範: "オブジェクト指向による複合材料の力学的解析" 日本機械学会論文集.

    • Related Report
      1989 Annual Research Report
  • [Publications] 日本機械学会編: "構造・材料の最適設計" 技報堂出版, 262 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] 三木光範: 材料システム. 7. 17-22 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Mitsunori Miki: Proc.7th International Conference on Composite Materials(ICCM/7). (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] Mitsunori Miki: Proc.30th Structures,Structural Dynamics and Materials Conference,AIAA. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 三木光範: 日本材料学会誌. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 三木光範: 日本航空宇宙学会誌. (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 三木光範: 日本材料学会誌.

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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