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A frontal solution program for finite element analysis
Author(s) -
Irons Bruce M.
Publication year - 1970
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620020104
Subject(s) - fortran , finite element method , notation , element (criminal law) , computer science , matrix (chemical analysis) , algorithm , programming language , algebra over a field , mathematics , computational science , structural engineering , arithmetic , pure mathematics , engineering , materials science , law , political science , composite material
The program given here assembles and solves symmetric positive–definite equations as met in finite element applications. The technique is more involved than the standard band–matrix algorithms, but it is more efficient in the important case when two‐dimensional or three‐dimensional elements have other than corner nodes. Artifices are included to improve efficiency when there are many right hand sides, as in automated design. The organization of the program is described with reference to diagrams, full notation, specimen input data and supplementary comments on the ASA FORTRAN print‐out.