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

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K14147
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 18010:Mechanics of materials and materials-related
• Research Institution: Hiroshima 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
• Keywords: 板成形 / 弾塑性 / 大変形 / 有限要素法 / シェル要素

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.

Free Research Field

計算力学

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．