EFFICIENT SOLUTION OF PIECEWISE-LINEAR STRUCTURES

Authors
DEEKS AJ CLYDE DH
Citation
Aj. Deeks et Dh. Clyde, EFFICIENT SOLUTION OF PIECEWISE-LINEAR STRUCTURES, Computers & structures, 48(4), 1993, pp. 595-605
Citations number
5
Categorie Soggetti
Computer Sciences","Computer Application, Chemistry & Engineering",Engineering,"Computer Applications & Cybernetics
Journal title
Computers & structures → ACNP
ISSN journal
00457949
Volume
48
Issue
4
Year of publication
1993
Pages
595 - 605
Database
ISI
SICI code
0045-7949(1993)48:4<595:ESOPS>2.0.ZU;2-E
Abstract
This paper presents a method for obtaining the stiffness matrix of a r eleased structure by augmenting the stiffness matrix of the original s tructure. A procedure is presented by which the modified structure can be analysed without reducing the complete modified stiffness matrix. Only the augmented portion need be reduced. The method is illustrated by applying it to the problem of calculating hinge rotations in the an alysis of plastic frames. The new approach is shown to lead to conside rable savings in computer time in this application.