A three-dimensional mesh generator for arbitrary multiple material domains
A three-dimensional mesh generator for arbitrary multiple material domains
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DOI：
10.1016/s0168-874x(96)00027-3
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发表时间：
1997-04-17
影响因子：
3.1
通讯作者：
Paulsen, KD
中科院分区：
文献类型：
--
作者：
Sullivan, JM;Charron, G;Paulsen, KD
提出了一种概念简单、计算高效的系统，可自动生成完全任意、多材料区域的三维有限元网格。该网格生成系统非常适合于自适应情况。它不需要用户干预，并且能够在整个域中改变分辨率。元素模板将叠加在模型的边界上。N级优化例程提高了用户指定区域中的网格分辨率。跨越边界的元素将被调整以符合模型的边界。内部边界和不同的材质区域保留在最终网格中。给出的样本网格以人体内部器官的离散化为最终结果，这表明了该方法的通用性。计算工作量与生成的体积节点呈线性关系。
A conceptually straightforward and computationally efficient system is presented that automatically generates three-dimensional finite element meshes for completely arbitrary, multiple material domains. This mesh generation system is well suited for adaptive situations. It requires no user intervention and has the ability to vary the resolution throughout the domain. A template of elements is superimposed upon the boundary of the model. An N-level refinement routine increases the mesh resolution in user-specified regions. Elements that straddle a boundary are adapted to conform to the model's boundaries. Internal boundaries and distinct material regions are retained in the final mesh. Sample meshes are presented culminating with a discretization of a human body complete with internal organs, which demonstrates the generality of the method. The computational effort is shown to scale linearly with volume nodes generated.