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Finite element-based approach to modeling heterogeneous objects

机译:基于有限元的异构对象建模方法

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摘要

Advances in materials and rapid prototyping technology, makes developing rapid-prototype heterogeneous parts possible. This paper proposes a finite element-based approach for modeling heterogeneous parts to facilitate rapid prototyping. In this approach, traditional geometrical and topological data are blended with materials information in the CAD model. It builds on a CAD system to create parts' geometry which is then subdivided into a set of tetrahedral finite elements. With this, the design problem of material distribution in the whole body can be handled at the finite element level. The material composition of each point inside a finite element is formulated in terms of four control nodes of the finite element and a blending function. Moreover, design rules for modeling heterogeneous parts are introduced in the paper, making the modeling solution more robust.
机译:材料的进步和快速成型技术的发展,使得开发快速成型异质零件成为可能。本文提出了一种基于有限元的方法来对异构零件进行建模,以促进快速原型制作。通过这种方法,将传统的几何和拓扑数据与CAD模型中的材料信息混合在一起。它基于CAD系统创建零件的几何形状,然后将其细分为一组四面体有限元。这样,可以在有限元级别上解决整个体内材料分布的设计问题。有限元内部每个点的材料成分由有限元的四个控制节点和一个混​​合函数来表示。此外,本文还介绍了用于建模异构零件的设计规则,从而使建模解决方案更加健壮。

著录项

  • 来源
    《Finite elements in analysis & design》 |2009年第9期|592-596|共5页
  • 作者单位

    Department of Automobile Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China;

    Department of Automobile Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China;

    Industrial and Systems Engineering Department, Florida International University, FL 33174, USA;

    Department of Automobile Engineering, Beijing University of Aeronautics & Astronautics, Beijing 100083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    rapid prototyping; heterogeneous objects; material information; tetrahedral finite element;

    机译:快速成型;异类对象重要信息;四面体有限元;

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