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Numerical Simulation

Principles, Methods and Models
  • C. C. Baniotopoulos
Conference paper
Part of the International Centre for Mechanical Sciences book series (CISM, volume 419)

Abstract

Aim of the present chapter is to present certain basic principles, numerical techniques and algorithmic models applied to the simulation of the structural response of steel semi-rigid connections. For the numerical treatment of this problem, the Finite Element Method is applied. Nonlinearities introduced by unilateral contact and friction over the connection interfaces, as well as material nonlinearities including yielding have been taken into consideration in all of the herein presented models. Within this framework, a variational inequality and a quadratic programming approach have been applied to the unilateral contact problem in steel connections and the corresponding sensitivity analysis has been performed. Based on this methodology, an effective 2-D numerical model for steel connections including contact and plasticity is first presented and, in the sequel, a parametric analysis of the response of steel base plate connections is carried out. Mesh size, choice of finite elements and other parameters affecting the accuracy and the numerical behaviour of the models are also discussed. In the last paragraphs of this chapter a parametric analysis of the response of hollow section joints by means of an effective 3-D model has also been performed giving rise to interesting numerical results that describe with accuracy any possible failure mode of the joint under investigation.

Keywords

Variational Inequality Base Plate Quadratic Programming Problem Quadratic Optimization Problem Unilateral Contact 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 2000

Authors and Affiliations

  • C. C. Baniotopoulos
    • 1
  1. 1.Aristotle University of ThessalonikiThessalonikiGreece

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