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.

引用

页码：837 / 849

页数：13

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