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Development of high-precision and low-cost plate bending model using thick shell element

Research Project

Project/Area Number 22K14147
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 InstitutionHiroshima University

Principal Investigator

Yamamoto Takeki  広島大学, 先進理工系科学研究科(工), 助教 (00802860)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords板成形 / 弾塑性 / 大変形 / 有限要素法 / シェル要素 / 弾塑性解析 / 大変形問題 / 非線形有限要素法
Outline of Research at the Start

本研究課題では,板曲げ加工の生産性向上を支援するための数値解析技術として,板曲げ加工シミュレーションの基盤となる高精度・低コストな板曲げ加工モデルを構築する.そのために,計算時間に対する優位性を損なわずにシェル要素を高精度化する.新しく開発した厚肉シェル要素を板曲げ加工モデルに適用し,実験結果等と比較することでモデル化の妥当性確認を行い,提案する板曲げ加工モデルの適用範囲と計算精度を明らかにする.

Outline of Final Research Achievements

The objective of this work is to develop a high accuracy and low cost plate bending model as a basis of numerical simulation for improving the productivity of plate bending. In this work, we construct the basic framework on the generation of the geometric model considering the mechanical behavior in the thickness direction, the technique of numerical simulation using thick shell element, and the numerical algorithm for efficiently performing the nonlinear analysis for the elastoplastic material.

Academic Significance and Societal Importance of the Research Achievements

本研究課題では,構造要素を用いてこれまで考慮できなかった板厚方向の力学挙動を考慮した幾何学モデルの生成とそれに基づく数値シミュレーション手法を提案した.これらの研究は,板曲げ加工に対する生産性向上を目的とした数値シミュレーションの開発の基礎であり,今後,設計段階や製造工程での金型製作および成形時に発生する不具合の原因究明などに用いられる技術発展が期待される.

Report

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

    (6 results)

All 2023 2022

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Introduction of pseudo-stress for local residual and algebraic derivation of consistent tangent in elastoplasticity2023

    • Author(s)
      Yamamoto Takeki、Yamada Takahiro、Matsui Kazumi
    • Journal Title

      Computational Mechanics

      Volume: - Issue: 6 Pages: 1081-1091

    • DOI

      10.1007/s00466-023-02268-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elastoplastic analysis of shells without any local iterative calculations by block Newton method2023

    • Author(s)
      Takeki Yamamoto, Takahiro Yamada, Kazumi Matsui
    • Journal Title

      Computational Mechanics

      Volume: 72 Issue: 5 Pages: 967-989

    • DOI

      10.1007/s00466-023-02322-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Finite element analysis of hyperelastic shells without any local iterative calculations by block Newton method2022

    • Author(s)
      山本 剛大, 山田 貴博, 松井 和己
    • Journal Title

      Transactions of the JSME (in Japanese)

      Volume: 88 Issue: 912 Pages: 22-00150-22-00150

    • DOI

      10.1299/transjsme.22-00150

    • ISSN
      2187-9761
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Block Newton法の大変形弾塑性問題への適用2023

    • Author(s)
      山本 剛大, 山田 貴博, 松井 和己
    • Organizer
      第28回計算工学講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 平面応力弾塑性解析へのBlock Newton法の適用2022

    • Author(s)
      山本 剛大, 山田 貴博, 松井 和己
    • Organizer
      第27回計算工学講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Elastic Buckling of Cylindrical Shell Subjected Pressure Load at Surface2022

    • Author(s)
      Takeki Yamamoto, Takahiro Yamada
    • Organizer
      15th World Congress on Computational Mechanics & 8th Asia Pacific Congress on Computational Mechanics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research

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

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