Stability Of Arches And Beams Under
Unilateral Constraints
Author(s)
P. B. Gonsalves & R.A.M. Silveira
Abstract
A numerical methodology is presented in this paper for the budding and post-buckling
analysis of slender structural elements such as arches and beams subjected to unilateral
contact constraints. A geometrically non-linear finite element model is used together with an
updated Lagrangian formulation to obtained the non-linear equilibrium paths for perfect and
imperfect structural models. The unilateral constraints are imposed by tensionless elastic or
rigid foundations. At each load step, in order to obtain the equilibrium configuration and
contact regions, the equilibrium equations are linearized and the contact problem is treated as
a minimization problem
Keywords
Related Book
Other papers in this volume
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