Paper Title:
Residual Stresses in TIG-Welded I-Beams. Experimental Test-Setup and Validation of Numerical Model
  Abstract

The presence of residual stresses is a determining factor in the buckling behaviour of steel beams. It is therefore necessary to know the magnitude and the distribution of residual stresses in welded beams. Experimental measurements of these residual stresses are expensive, timeconsuming and they give no insight in the evolution of the stresses during the welding process. For these reasons it is interesting to have a numerical model which allows a prediction of the residual stresses due to welding and which allows a study of the parameters that have an influence on the residual stresses (e.g. yield stress, heat-input, thermal expansion coefficient, …). Such a numerical model can result in a proposal for a welding process that leads to less detrimental residual stress distributions in welded I-beams. However, the results of the numerical model must always be checked with reality. This contribution contains the experimental verification of the finite element model for both single plates and I-beams with rather small dimensions. First, an overview of generally accepted influencing factors on the residual stresses is given. After this introduction, a setup which allows control of the parameters for making reproducible weld seams is presented. This setup is usable for both plates and I-beams. Next it is described how the residual stresses in a plate and a beam were measured. Finally the results obtained from different configurations in the experiments are compared with the results from the FE-model. It is shown that the FE-model gives reliable predictions for the residual stresses.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
1425-1430
DOI
10.4028/www.scientific.net/KEM.340-341.1425
Citation
M. De Strycker, P. Buffel, J. Belis, C. Fimmers, W. Vanlaere, G. Lagae, "Residual Stresses in TIG-Welded I-Beams. Experimental Test-Setup and Validation of Numerical Model", Key Engineering Materials, Vols. 340-341, pp. 1425-1430, 2007
Online since
June 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Claire Acevedo, Jean Marie Drezet, J. P. Lefebvre, Laurent D'Alvise, A. Nussbaumer
Abstract:This paper describes the numerical analysis method used to estimate welding induced residual stresses in K-shape tubular bridge joints. The...
335
Authors: Chun Yuan Shi, Ping Zhu, Kun Zhou
Chapter 5: Materials Processing and Chemical Technologies
Abstract:Using finite element method, the residual stress distribution of TIG dressed welded toe followed by chilling treatment with different...
529
Authors: Tomasz Kik, Marek Slovacek, Jaromir Moravec, Mojmir Vanek
Chapter 4: Welding and Assembly Technologies in Manufacturing
Abstract:Simulation software based on a finite element method have significantly changed the possibilities of determining welding strains and stresses...
443