A nodal spectral stiffness matrix for the finite-element method

被引：2
|
作者：
Bittencourt, Marco L. [1 ]
Vazquez, Thais G. [1 ]
机构：
[1] Univ Estadual Campinas, Dept Mech Design, Fac Mech Engn, BR-13083970 Campinas, SP, Brazil
来源：
IMA JOURNAL OF APPLIED MATHEMATICS | 2008年 / 73卷 / 06期
关键词：
Finite-element method; Gauss-Lobatto quadrature; Spectral stiffness matrix;
D O I：
10.1093/imamat/hxn031
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper, shape functions are proposed for the spectral finite-element method aiming to finding a nodal spectral stiffness matrix. The proposed shape functions obtain a nearly diagonal 1D stiffness matrix with better conditioning than using the Lagrange and Jacobi bases.
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页码：837 / 849
页数：13
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