Instability analysis of space trusses using exact tangent-stiffness matrices
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.
expression for the tangent-stiffness matrix
scientific article; zbMATH DE number 3936640