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  • Summary & Details

Eulerian Elastoplastic Analysis using Lagrangian Particles for Large-Scale Parallel Computing

マーカー粒子を用いた有限体積法による大規模並列計算に適した弾塑性構造解析

Detailed Information

Author(J)1) 杉山 裕文, 2) 西口 浩司, 3) 嶋田 宗将, 4) 坪倉 誠, 5) 岡澤 重信
Author(E)1) Hirofumi Sugiyama, 2) Koji Nishiguchi, 3) Tokimasa Shimada, 4) Makoto Tsubokura, 5) Shigenobu Okazawa
Affiliation(J)1) 山梨大学, 2) 名古屋大学, 3) 神戸大学, 4) 神戸大学, 5) 山梨大学
Affiliation(E)1) University of Yamanashi, 2) Nagoya University, 3) Kobe University, 4) Kobe University, 5) University of Yamanashi
Abstract(J)オイラー型で空間固定されたメッシュを用いて有限体積法により離散化を行い,データ交換性の高い手法により構造解析を行う.マーカー粒子を用いて応力を計算することで,固体界面と固体内部変数の数値拡散を避けることができる.本研究では,これまでのFEMとの誤差について検証し,本提案手法の妥当性を確認する.

Translation

Abstract(E)We propose an Eulerian structural analysis using Lagrangian particles for large-scale parallel computing. A finite volume method for Eulerian meshes is employed for discretization. The solid domain is modeled using Lagrangian particles, besides the stress is calculated on each particle. Thus the present method enables to avoid the numerical diffusion of the solid interface and solid internal variables. In this study, we verify the present method compared with the FEM and confirm the validity of the proposed method.

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