POST-BUCKLING BEHAVIOR AND IMPERFECTION SENSITIVITY OF L-FRAMES-Reference-Cited by-同舟云学术

POST-BUCKLING BEHAVIOR AND IMPERFECTION SENSITIVITY OF L-FRAMES

Published:2005-03 Issue:01 Volume:05 Page:19-35
ISSN:0219-4554
Container-title:International Journal of Structural Stability and Dynamics
language:en
Short-container-title:Int. J. Str. Stab. Dyn.

Author:

GALVÃO ALEXANDRE S.¹,GONÇALVES PAULO B.¹,SILVEIRA RICARDO A. M.²

Affiliation:

1. Civil Engineering Department, PUC-Rio, Rua Marquês de São Vicente, 225, Gávea, 22453-900 Rio de Janeiro, RJ, Brazil

2. Civil Engineering Department, School of Mines, UFOP, Campus Universitário, Morro do Cruzeiro, 35400-000 Ouro Preto, MG, Brazil

Abstract

In this paper, a detailed analysis is conducted to study the influence of the geometric parameters, boundary conditions as well as initial imperfections on the nonlinear response and imperfection sensitivity of L-frames. An efficient nonlinear finite element formulation for the analysis of planar elastic frames is used together with incremental-iterative strategies. This enables one to obtain the highly nonlinear equilibrium paths exhibited by L-frames under certain loading conditions and identify the bifurcation and limit points along these equilibrium paths. These results provide some insight as to the source and mechanism of asymmetric bifurcation and imperfection sensitivity in frames thus helping engineers to evaluate the importance of geometric nonlinearities in the analysis and design of slender elastic frames.

Publisher

World Scientific Pub Co Pte Lt

Subject

Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering

Link

https://www.worldscientific.com/doi/pdf/10.1142/S021945540500143X

Reference17 articles.

1. Frame buckling: An illustration of the perturbation technique

2. Buckling of Imperfect Rigid-Jointed Frames

3. A Parametric Postbuckling Analysis of an Asymmetric Two-Bar Frame

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