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A moving Kriging interpolation-based boundary node method for two-dimensional potential problems 被引量:4
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作者 李兴国 戴保东 王灵卉 《Chinese Physics B》 SCIE EI CAS CSCD 2010年第12期18-24,共7页
In this paper, a meshfree boundary integral equation (BIE) method, called the moving Kriging interpolation- based boundary node method (MKIBNM), is developed for solving two-dimensional potential problems. This st... In this paper, a meshfree boundary integral equation (BIE) method, called the moving Kriging interpolation- based boundary node method (MKIBNM), is developed for solving two-dimensional potential problems. This study combines the DIE method with the moving Kriging interpolation to present a boundary-type meshfree method, and the corresponding formulae of the MKIBNM are derived. In the present method, the moving Kriging interpolation is applied instead of the traditional moving least-square approximation to overcome Kronecker's delta property, then the boundary conditions can be imposed directly and easily. To verify the accuracy and stability of the present formulation, three selected numerical examples are presented to demonstrate the efficiency of MKIBNM numerically. 展开更多
关键词 meshfree method moving kriging interpolation method boundary integral equation boundary node method potential problem
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一维压电准晶断裂问题边界无单元法分析
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作者 李艳松 刘金玲 《广东石油化工学院学报》 2021年第4期58-61,共4页
采用一种新型边界无单元法研究了一维压电准晶复杂裂纹的断裂问题。该方法采用只含有柯西奇异性的广义面力边界积分方程,位错密度函数由未知权函数表示,权函数由移动Kriging插值得到。给出裂纹问题数值算例,计算了声子场和相位子场的应... 采用一种新型边界无单元法研究了一维压电准晶复杂裂纹的断裂问题。该方法采用只含有柯西奇异性的广义面力边界积分方程,位错密度函数由未知权函数表示,权函数由移动Kriging插值得到。给出裂纹问题数值算例,计算了声子场和相位子场的应力强度因子和电位移强度因子。结果表明该方法精度高、适用性强。 展开更多
关键词 边界积分方程 压电准晶 裂纹问题 移动kriging插值 边界无单元法
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