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A Procedure To Assemble Only Non-Zero Coefficients Of Global Matrix In Finite Element Analysis

IR@SERC: CSIR-Structural Engineering Research Centre, Chennai

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Title A Procedure To Assemble Only Non-Zero Coefficients Of Global Matrix In Finite Element Analysis
 
Creator Rajasankar, J.
Nagesh R. Iyer
Appa Rao, T.V.S.R.
 
Subject Finite element method
Assembly of element equations
Global matrix storage
h-adaptive reÆnement
Sparse matrix
 
Description A procedure to assemble only non-zero coeÅcients of a global matrix of Ænite element analysis in a one-dimensional array is proposed. The procedure uses a stencil matrix and a template matrix at intermediate stages to Ænally arrive at the one-dimensional global array. The intermediate operations are done with matrices consisting of only integers. The element matrices are handled only during the Ænal step of the assembly. The procedure is simple and modular. The procedure has been implemented in a computer program and demonstrated using an example problem in the context of h-adaptive reÆned Ænite element meshes. ” 2000 Elsevier Science Ltd. All rights reserved.
A procedure to assemble only non-zero coe cients of a global matrix of ®nite element analysis in a one-dimensional array is proposed. The procedure uses a stencil matrix and a template matrix at intermediate stages to ®nally arrive at the one-dimensional global array. The intermediate operations are done with matrices consisting of only integers. The element matrices are handled only during the ®nal step of the assembly. The procedure is simple and modular. The procedure has been implemented in a computer program and demonstrated using an example problem in the context of h-adaptive re®ned ®nite element meshes
 
Date 2009
2009
2000
 
Type Journal article
 
Identifier Computers and Structures, Vol.77, 2000, p.595-599
http://hdl.handle.net/123456789/83
 
Language en
 
Rights It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
 
Publisher Elsevier