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2002 Fiscal Year Final Research Report Summary

Impact Response Analysis of Multi-layered Surface Structures with Composite Material

Research Project

Project/Area Number 13650529
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 構造工学・地震工学
Research InstitutionOsaka City University

Principal Investigator

KOBAYASHI Harutoshi  Osaka City University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (40047395)

Co-Investigator(Kenkyū-buntansha) TSUNOKAKE Hisao  Osaka City University, Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (90326249)
Project Period (FY) 2001 – 2002
KeywordsMulti-layered Surface Structure / Anisotropy / Plate / Shell / Impact Response / Wave Propagation / Method of Eigenfunction Expansion / Composite Material
Research Abstract

Part1: The method of eigenfunction expansion is developed to the elestodynamic response analysis of a transversely isotropic, thick rectangular plate with simply supported edge conditions under impact pressure loadings. The elastodynamic solution is decomposed into their quasi-static and dynamic components. The quasi-static solution is obtained by an exact analysis of the quasi-differential equations with the time-dependent boundary conditions. While the dynamic part is given in an infinite series of the eigenfunctions (normal modes) which are derived from the exact free vibration analysis of the associated problem satisfying homogeneous boundary conditions. Stresses and displacements responses are shown graphically, and then influences of anisotropy on the dynamic response are discussed.
Part2 : An impact response analysis for a transversely isotropic circular cylindrical shell is carried out using the method of eigenfunction expansion based on the theory of 3D elastodynamics. The circular cylindrical shell is simply supported at its end surfaces, and a partially distributed uniform load is suddenly applied to its outer surface. Numerical results for stress and displacement responses at some locations of interest are shown graphically, and then the influences of anisotropy on the impact response are discussed. The higher stress response will be occurred in the direction with higher longitudinal elastic modulus.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] Tsunokake, H., Kobayashi, H., Sukata, D.: "Elastodynamic response of a transversely isotropic, thick rectangular plate"Proceedings of 4th Asia-Pacific Conference on Shock & Impact Loads on Structures. 515-520 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 角掛久雄, 須方大介, 小林治俊: "異方性平板の波動伝播解析"構造物の衝撃問題に関するシンポジウム論文集、土木学会. Vol.6. 55-60 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tsunokake, H., Kobayashi, H., Araki, H.: "Impact response of transversely isotropic circular shells"7th International Conference on Structure Under Shock and Impact. (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tsunokake, H., Kobayashi, H. and Sukata, D.: "Elastodynamic response of a transversely isotropic, thick rectangular plate"Proceedings of 4th Asia-Pacific Conference on Shock & Impact Loads on Structures, Singapore. 515-520 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsunokake, H., Sukata, D, and Kobayashi, H.: "Elastodynamic Analysis of an Amsotropic Plate (in Japanese)"Proceedings of the 6th Symposium on Impact Problems in Civil Engineerings, Japan Society of Civil Engineers. 55-60 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Tsunokake, H., Kobayashi, H. and Araki, H.: "Impact response of transversely isotropic circular shells"7th International Conference on Structure Under Shock and Impact, Montreal, Canada. (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2004-04-14  

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