Bernstein polynomials in element-free Galerkin method

被引:6
|
作者
Valencia, O. F. [2 ]
Gomez-Escalonilla, F. J. [3 ]
Garijo, D. [2 ]
Diez, J. L. [1 ]
机构
[1] Univ Politecn Madrid, ETSI Aeronaut, E-28040 Madrid, Spain
[2] SENER Ingn & Sistemas, Madrid, Spain
[3] Airbus Mil, Madrid, Spain
关键词
meshless; shape functions; Bernstein curves; element-free Galerkin method; SELECTABLE PARAMETERS;
D O I
10.1177/0954406211401677
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
In the recent decades, meshless methods (MMs), like the element-free Galerkin method (EFGM), have been widely studied and interesting results have been reached when solving partial differential equations. However, such solutions show a problem around boundary conditions, where the accuracy is not adequately achieved. This is caused by the use of moving least squares or residual kernel particle method methods to obtain the shape functions needed in MM, since such methods are good enough in the inner of the integration domains, but not so accurate in boundaries. This way, Bernstein curves, which are a partition of unity themselves, can solve this problem with the same accuracy in the inner area of the domain and at their boundaries.
引用
收藏
页码:1808 / 1815
页数:8
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