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Topology optimization to control dynamic performance of composite materials including rubber, resin, and metal

Research Project

Project/Area Number 21K14229
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22020:Structure engineering and earthquake engineering-related
Research InstitutionNagoya University

Principal Investigator

Hoshiba Hiroya  名古屋大学, 工学研究科, 助教 (80847038)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsトポロジー最適化 / 材料非線形 / 複合材料 / 弾塑性材料 / 複合構造物 / 感度解析 / 複合構造 / 複合ゴム構造 / 動的応答制御 / 最適設計
Outline of Research at the Start

近年,新たな積層造形技術によって,幾何学的に高い自由度をもって異種材料を組み合わせる複合造形が可能になりつつある.特に,ゴム,樹脂,金属といったエネルギー散逸を生じる非線型材料の造形技術の発展が著しく,これらの材料をうまく組み合わせることで,荷重の大きさや時間変化に応じた耐衝撃性能や,特定の振動外力に対して制振性能を発揮するような複合材料の開発が期待できる.本研究では,粘弾性・粘弾塑性材料を含む複合材料の耐衝撃性・制振性といった動的パフォーマンスの制御を目的として,複合材料内部の個々の材料配置・形状を決定する数値シミュレーションの枠組みを構築する.

Outline of Final Research Achievements

This study extends the existing topology optimization theory to control the dynamic response of composite structures containing rubber, resin, and metal in terms of impact resistance and vibration-damping properties. First, an optimization problem and sensitivity analysis were formulated for the purpose of controlling the dynamic response of composite structures, especially the damping properties derived from the materials. Next, a virtual material model combining elastoplastic and other materials was proposed, and a topology optimization framework for heterogeneous composite materials, including resins and metals, was developed. Finally, a stabilization method based on a subloading surface model was introduced to address the instability problem in convergence calculations caused by non-smooth stress-strain relationships.

Academic Significance and Societal Importance of the Research Achievements

本研究により,これまでのトポロジー最適化の枠組みで扱えなかった非線形複合材料の複雑な動的挙動を考慮した最適設計の実現に向けて前進した.弾塑性材料を含む異なる非線形材料を合わせた仮想混合材料モデルの提案と,同仮想材料のグレースケール下の応力-ひずみ関係の滑らかさを補完する下負荷面モデルの適用はこれまでにないアプローチであり,他の異種複合材料に対しても拡張性・汎用性を有している.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (11 results) (of which Int'l Joint Research: 7 results)

  • [Journal Article] AN EXTENDED SIMP MODEL AND SENSITIVITY FORMULATION FOR TOPOLOGY OPTIMIZATION OF BRITTLE-DUCTILE COMPOSITE STRUCTURES2023

    • Author(s)
      FUJIWARA Mutsuki、HOSHIBA Hiroya、NISHIGUCHI Koji、KATO Junji
    • Journal Title

      Japanese Journal of JSCE

      Volume: 79 Issue: 15 Pages: n/a

    • DOI

      10.2208/jscejj.22-15028

    • ISSN
      2436-6021
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 下負荷面モデルを応用した トポロジー最適化の材料パラメータに関する検討2024

    • Author(s)
      奈良峻輔,干場大也,西口浩司,加藤準治
    • Organizer
      第29回計算工学講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Stabilization of Topology Optimization of Elastoplastic Structures by Applying Subloading Surface Model2023

    • Author(s)
      Hiroya Hoshiba, Junji Kato
    • Organizer
      17th U. S. National Congress on Computational Mechanics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 下負荷面モデルを応用した弾塑性トポロジー最適化の安定化に関する検討2023

    • Author(s)
      干場大也,加藤準治
    • Organizer
      第28回計算工学講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Stabilization of Topology Optimization of Elastoplastic Structures by Applying Subloading Surface Model2023

    • Author(s)
      Hiroya Hoshiba
    • Organizer
      USNCCM17
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 下負荷面モデルを応用した弾塑性トポロジー最適化の安定化に関する検討2023

    • Author(s)
      干場大也
    • Organizer
      第28回計算工学講演会
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Topology Optimization Using Brittle-ductile SIMP Composites2022

    • Author(s)
      Hiroya Hoshiba
    • Organizer
      ACSMO 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 脆性-延性複合構造物のトポロジー最適化のための拡張SIMP法の提案2022

    • Author(s)
      藤原睦樹
    • Organizer
      第25回応用力学シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] A practicable two-material interpolation method for isotropic brittle-ductile topology optimization2022

    • Author(s)
      Hiroya Hoshiba
    • Organizer
      WCCM-APCOM 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 密度法に基づく複合材料の高強度・高靭性トポロジー最適化2022

    • Author(s)
      干場大也
    • Organizer
      第27回計算工学講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Multi-material Dynamic Optimal Design based on Generalized Maxwell Model2022

    • Author(s)
      G. Liu, H. Hoshiba, K. Nishiguchi and J. Kato
    • Organizer
      ACSMO 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Preliminary Study on Multi-material Dynamic Topology Optimization based on Generalized Maxwell Model2022

    • Author(s)
      G. Liu, H. Hoshiba, K. Nishiguchi and J. Kato
    • Organizer
      WCCM-APCOM 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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