• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Creation of hierarchical mechanical metamaterials that enable flexible deformation

Research Project

Project/Area Number 22K14153
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionMuroran Institute of Technology

Principal Investigator

Tateyama Kohei  室蘭工業大学, 大学院工学研究科, 准教授 (70837096)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsメカニカルメタマテリアル / 衝撃吸収 / セル構造体 / ひずみ速度 / 階層化
Outline of Research at the Start

材料に幾何構造を付与し、特異な機械的特性を発現させたものを、メカニカルメタマテリアルと呼んでいる。その一種で、内部に多数の空孔(セル)を有するセル構造体は、セルの幾何学的制御のみでその機械的特性を変化可能である。本研究の目的は、自由自在な変形を可能とする階層的メカニカルメタマテリアルを創製することである。そのために、「規則構造」および「不規則構造」の両者をミクロとマクロに「階層的」に配置するといった発想から、従来は相容れなかった変形機構の共存を目指す。

Outline of Final Research Achievements

The aim of this study was to create a hierarchical metamaterial in which two types of deformation mechanisms coexist, based on the idea of arranging both ordered and irregular structures in a cellular structure hierarchically. Specifically, we attempted to control the macroscopic deformation of the cellular structure by adding artificial defects to the cellular structure. As a result of our investigation, we were able to suggest that it would be possible to arbitrarily control the deformation by adding artificial defects to an irregular cellular structure.

Academic Significance and Societal Importance of the Research Achievements

セル構造体を用いて、自由自在な変形を可能とする階層的メカニカルメタマテリアルの創製について検討した。この際,セル構造体に人工的な欠陥を付与することでセル構造体のマクロな変形の制御を試みた。セル構造体に人工欠陥を付与することで、セル壁一つ一つのミクロな変形とセル構造体としてのマクロな変形をそれぞれ個別に制御できることが示唆された。セル構造体は相対密度やセル形状によって変形が支配されるため、構造のみの変化によって大きく特性を制御することは困難とされてきたが、本研究によって、不規則なセル構造体に対して人工欠陥を付与することで、任意に変形の制御が可能となることを示唆することができた。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (8 results)

All 2023 2022

All Presentation (8 results) (of which Int'l Joint Research: 6 results)

  • [Presentation] Impact Compressive Deformation Behavior of Artificial Pumice for Reinforcement of Shelter against Ballistic Ejecta2023

    • Author(s)
      K. Tateyama, H. Fujiki, H. Sasaki, N. Ogasawara and H. Yamada
    • Organizer
      11th International Symposium on Impact Engineering
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Artificial Defect on Deformation Behavior of Cell Structures2023

    • Author(s)
      T. Ori, K. Tateyama and H. Fujiki
    • Organizer
      ATEM-iDICs '23, JSME-MMD & iDICs
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Geometric Shape on Compressive Behavior of Cellular Structures2023

    • Author(s)
      K. Maebara, K. Tateyama, M. Kiuchi and K. Watanabe
    • Organizer
      ATEM-iDICs '23, JSME-MMD & iDICs
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interaction of Cell Wall Thickness and Node Shape on Compressive Properties of Cell Structures2023

    • Author(s)
      K. Tateyama and H. Fujiki
    • Organizer
      20th International Conference on Experimental Mechanics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] セル構造体の圧縮特性に及ぼすセル数の影響2023

    • Author(s)
      石岡健太郎,立山耕平,藤木裕行
    • Organizer
      日本機械学会M&M2023材料力学カンファレンス
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effect of Internal Air on Compressive Properties of Foamed Polymer2022

    • Author(s)
      Kohei Tateyama, Hiroyuki Fujiki
    • Organizer
      International Conference on Materials & Processing 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of Interaction between Microstructure and Internal Fluid on Dynamic Compressive Behavior in Cellular Materials2022

    • Author(s)
      Kohei Tateyama and Hiroyuki Fujiki
    • Organizer
      17th Asia-Pacific Conference on Fracture and Strength and the 13th Conference on Structural Integrity and Failure
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] セル構造体における内部流体の流出特性2022

    • Author(s)
      立山 耕平、藤木 裕行
    • Organizer
      第35回計算力学講演会
    • Related Report
      2022 Research-status Report

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi