A compiler for generating the global stiffness matrix for symbolically-defined regular finite element analysis grids

Authors
Kyaw, M Caplan, R Mogdans, D Leff, LL
Citation
M. Kyaw et al., A compiler for generating the global stiffness matrix for symbolically-defined regular finite element analysis grids, COMPUT STRU, 76(4), 2000, pp. 461-469
Citations number
17
Categorie Soggetti
Civil Engineering
Journal title
COMPUTERS & STRUCTURES
ISSN journal
00457949 → ACNP
Volume
76
Issue
4
Year of publication
2000
Pages
461 - 469
Database
ISI
SICI code
0045-7949(200007)76:4<461:ACFGTG>2.0.ZU;2-S
Abstract
A MAPLE system compiles definitions of regular grids into a custom FORTRAN program. These regular grids are defined in terms of symbols which represen t the geometry of the object being analyzed. The FORTRAN program takes as i nput, the numeric values for these symbols. It generates the global stiffne ss matrix, K. This is solved for the displacement vectors in the equation K x = B. This system produces the same displacements as NASTRAN and has been benchmarked favorably against this commercial product. (C) 2000 Elsevier Sc ience Ltd. All rights reserved.