自己組織化可変モデルに基づく六面体要素有限要素モデル生成

Translated title of the contribution: Finite Element Modelling using Hexahedral Elements Based on Self-organizing Deformable Model

諸岡 健一, 吉 媛テイ, 宮内 翔子, 辻 徳生, 倉爪 亮

Research output: Contribution to journalArticlepeer-review

Abstract

Finite element method (FEM) is a well-known technique for modeling object physical behaviors. The FE analysis uses polyhedral mesh model, called FE model, of the object to be analyzed. The accuracy of the FE analysis depends on the quality of the polyhedral elements of the FE model. Here, theoretically, the FE analysis using hexahedral elements is superior to that of tetrahedral elements. However, hexahedral element construction needs to be satisfied with more constraints simultaneously compared with the tetrahedral element. Owing to the reason, there are few methods for generating hexahedral FE model of objects with complex shapes. This paper presents an automatic method for generating hexahedral FE model of human tissues. The proposed method is based on a Growing Self-organizing Deformable Model (GSDM) that is a deformable volumetric model. Practically, give a tissue surface model, we use as the initial GSDM the hexahedral model of the cuboid converted with the tissue. The hexahedral FE model is obtained by deforming the GSDM to fit the GSDM to the tissue surface and improve the quality of each element shape.
Translated title of the contributionFinite Element Modelling using Hexahedral Elements Based on Self-organizing Deformable Model
Original languageJapanese
Pages (from-to)S253_03-S253_03
JournalBME = Bio medical engineering / henshu, Nihon ME Gakkai
Volume53
Issue number0
DOIs
Publication statusPublished - 2015

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