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Structural multi-scale boundary element method based on element subdivision technique
Author(s): 
Pages: 258-263
Year: Issue:  2
Journal: Chinese Journal of Computational Mechanics

Keyword:  boundary element methodelement subdivision techniquestructural multi-scalenonhomogeneous materialmulti-domain problems;
Abstract: 建立在基于单元子分法的一种有效自适应格式以及多区域边界元三步求解技术基础上提出了一种计算结构多尺度问题的多区域边界元法.首先,通过高斯积分误差分析公式确定边界单元在满足精度要求下所需要的高斯点数,当所需高斯点数超过规定数目时该单元就被自动划分成一定数量的子单元,从而消除结构多尺度所引起的近奇异性.在单元子分技术的基础上采用多区域边界元三步求解技术来处理材料非均质问题:第一步消除各子域的内部未知量,...
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