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Dynamic Interaction Problems on Soil and Structures using BE/FE Hibrid Techniques

Research Project

Project/Area Number 62550330
Research Category

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

Allocation TypeSingle-year Grants
Research Field 土木構造
Research InstitutionShinshu University

Principal Investigator

MITSUI Yasushi  信州大学, 工学部, 助教授 (20021008)

Co-Investigator(Kenkyū-buntansha) 大上 俊之  信州大学, 工学部, 助手 (80152057)
清水 茂  信州大学, 工学部, 助手 (90126681)
富所 五郎  信州大学, 工学部, 助教授 (30021025)
Project Period (FY) 1987 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1988: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1987: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordsboundary element / finite element / oupling procedure / soil freezing / heat conduction / joint element / 熱伝導 / ジョイント要素 / 地下貯蔵タンクLNG / LPG / 凍結 / 凍結土圧 / フリージング・フロント / 境界-有限要素の結合手法 / 地価貯蔵タンク / LNG / 地下貯蔵タンク
Research Abstract

The coupling procedure, using finite and boundary elements, is proposed numerically to analize interaction problems on soil and structures. Various problems, such as slope problems with fractured masses, steady state heat conduction problems and unsteady state heat ones are calculated by this proposed scheme. Results are summarised as follows:
(1) This procedure is efficiently applicable to complicated boundaries, namely, rather complicated boundaries are discretized by finite elements and simpler ones are done by boundary elements. Then, not only input data but also computer resources are reduced.
(2) If a material body consists of subdomains whose aterial constants are different, joint elements are introduced connecting the subdomains. Then slipping phenomena between subdomains can be treated. If several subdomains are entirely connected without slip, we may choose spring constants of the joint elements approximately as K_s=100G and K_n=100E.
(3) The region containing fractured masses is discretized by quadrilateral finite elemets and these elements may be efficiently coupled in the proposed scheme.
(4) Using reduced integral techniques, the computer time can be decreased, especially in the case that thermal properties vary with temperature.

Report

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

    (22 results)

All Other

All Publications (22 results)

  • [Publications] 境界要素法論文集. 4. (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 境界要素法論文集. 5. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 境界要素法論文集. 5. (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 境界要素法論文集. 5. (1988)Int.Jour.Computers & Structures.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Endoh,N.: "Analysis of Freezing Soils by Boundary Elements" JASCOME. 4. 73-78 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Endoh,N.: "Analysis of Freezing Soils by BE/FE Conpling Procedure" JASCOME. 5. 221-226 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Ohkami,T.: "Boundary Element Analysis of Identification for Orthotropic Elastic Medium" JASCOME. 5. 107-112 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Shimizu,S.: "A New Collapse Model for Patch-Loaded Plates" Int. Jour. Construction Research. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Kusama,T.: "Application of the Finite Fourier Series to Boundary Element Method" Int. Jour. Computers and Structures. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Kusama,T.: "Interpolation Functions with Finite Fourier Series and its Application to Boundary Element Method" Proc. JSCE. I. (1989)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Mitsui,Y.: "Hybrid Techniques of Boundary and Finite Element for Freezing problems" Int. Jour. Numerical Methods in Engineering.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 遠藤典男: 境界要素法論文集. 4. 73-78 (1987)

    • Related Report
      1988 Annual Research Report
  • [Publications] 遠藤典男: 境界要素本論文集. 5. 221-226 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 大上俊之: 境界要素法論文集. 5. 107-112 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] Shigeru Shimizu: Jour.of Constructional Research.

    • Related Report
      1988 Annual Research Report
  • [Publications] Takashi Kusama: Int.Jour.Computers & structures.

    • Related Report
      1988 Annual Research Report
  • [Publications] 草間孝志: 土木学会論文集、I.

    • Related Report
      1988 Annual Research Report
  • [Publications] Yasushi Mitsui: Int.Jour.Numerical Methods in Engineering.

    • Related Report
      1988 Annual Research Report
  • [Publications] 遠藤典男: 境界要素法論文集. 4. 73-78 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] Yasushi Mitsui: Int. Jour. Computers and Geotechnics.

    • Related Report
      1987 Annual Research Report
  • [Publications] Toshiuki Ohhami: Int. Jour. Numerical and Analytical methods in Geomechanics.

    • Related Report
      1987 Annual Research Report
  • [Publications] Shigeru Shimizu: Jour. of Constructional Research.

    • Related Report
      1987 Annual Research Report

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

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