Instability analysis of space trusses using exact tangent-stiffness matrices

K. Tanaka, K. Kondoh, S. N. Atluri

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


A simple (exact) expression for the tangent-stiffness matrix of a space truss undergoing arbitrarily large deformation, as well as member buckling, is given. An arc-length method is used to solve the tangent-stiffness equations in the post-buckling range of the structural deformation. Several examples to illustrate the viability of the present approaches in analyzing large space structures, simply, efficiently, and accurately, are given.

Original languageEnglish
Pages (from-to)291-311
Number of pages21
JournalFinite Elements in Analysis and Design
Issue number4
StatePublished - Dec 1985


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