节点文献
采用三角形面积坐标的四边形17节点样条单元
A 17-Node Quadrilateral Spline Finite Element Using the Triangular Area Coordinates
【摘要】 利用二元4次样条插值基和三角形面积坐标构造17节点四边形单元.这个新单元具有4次完备阶,通过一些算例测试表明了该单元有较高精度并对网格畸变不敏感.
【Abstract】 A 17-node quadrilateral element had been developed using the bivariate quartic spline interpolation basis and the triangular area coordinates,which could exactly model the quartic field.Some appropriate examples are employed to illustrate that the element possesses high precision and is insensitive to mesh distortions.
【关键词】 17节点样条单元;
二元样条插值基;
三角形面积坐标;
B网方法;
4次完备阶;
【Key words】 17-node quadrilateral element; bivariate spline interpolation basis; triangular area coordinates; B-net method; fourth-order completeness;
【Key words】 17-node quadrilateral element; bivariate spline interpolation basis; triangular area coordinates; B-net method; fourth-order completeness;
【基金】 国家自然科学基金资助项目(60533060;10672032;10726067)
- 【文献出处】 应用数学和力学 ,Applied Mathematics and Mechanics , 编辑部邮箱 ,2010年01期
- 【分类号】O242.21
- 【被引频次】3
- 【下载频次】183