A GENERAL PROCEDURE FOR DERIVING SYMMETRICAL EXPRESSIONS FOR THE SECANT AND TANGENT STIFFNESS MATRICES IN FINITE-ELEMENT ANALYSIS

Authors
MORAN A ONATE E MIQUEL J
Citation
A. Moran et al., A GENERAL PROCEDURE FOR DERIVING SYMMETRICAL EXPRESSIONS FOR THE SECANT AND TANGENT STIFFNESS MATRICES IN FINITE-ELEMENT ANALYSIS, International journal for numerical methods in engineering, 42(2), 1998, pp. 219-236
Citations number
16
Categorie Soggetti
Mathematics,Engineering,Mathematics
Journal title
International journal for numerical methods in engineering → ACNP
ISSN journal
00295981
Volume
42
Issue
2
Year of publication
1998
Pages
219 - 236
Database
ISI
SICI code
0029-5981(1998)42:2<219:AGPFDS>2.0.ZU;2-4
Abstract
The paper presents a general and straightforward procedure based on th e use of the strain energy density for deriving symmetric expressions of the secant and tangent stiffness matrices for finite element analys is of geometrically non-linear structural problems. The analogy with p reviously proposed methods for deriving secant and tangent matrices is detailed. The simplicity of the approach is shown in an example of ap plication. (C) 1998 John Wiley & Sons, Ltd.