论文标题
HEXGEN和HEX2SPLINE：基于多管的六面体网格生成和样条建模，用于LS-DYNA中的同几何分析应用
HexGen and Hex2Spline: Polycube-based Hexahedral Mesh Generation and Spline Modeling for Isogeometric Analysis Applications in LS-DYNA
论文作者
论文摘要
在本文中，我们提出了两个软件包，即HEXGEN和HEX2SPLINE，它们无缝地将几何图形设计与LS-DYNA中的同几何分析（IGA）相结合。鉴于实体模型的边界表示，Hexgen通过使用半自动多管的网格生成方法来创建六面体网格。 Hex2spline从HEXGEN作为输入对照网格采用六面体网格，并构建体积截短的层次花纹。通过Bézier提取，Hex2spline将样条信息转移到LS-DYNA并进行IGA。我们说明每个软件包中的基本算法，并使用ROD模型来解释如何运行软件。我们还将软件应用于其他几种复杂模型以测试其鲁棒性。我们的目标是提供强大的体积建模工具，从而将IGA的边界扩展到基于体积的工业应用。
In this paper, we present two software packages, HexGen and Hex2Spline, that seamlessly integrate geometry design with isogeometric analysis (IGA) in LS-DYNA. Given a boundary representation of a solid model, HexGen creates a hexahedral mesh by utilizing a semi-automatic polycube-based mesh generation method. Hex2Spline takes the output hexahedral mesh from HexGen as the input control mesh and constructs volumetric truncated hierarchical splines. Through Bézier extraction, Hex2Spline transfers spline information to LS-DYNA and performs IGA therein. We explain the underlying algorithms in each software package and use a rod model to explain how to run the software. We also apply our software to several other complex models to test its robustness. Our goal is to provide a robust volumetric modeling tool and thus expand the boundary of IGA to volume-based industrial applications.
