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Practical aspects of welding residual stress simulation

Knoedel, P. 1; Gkatzogiannis, S. 1; Ummenhofer, T. 1
1 Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

The interest on calculating welding residual stresses from the welding process, through finite element (FE) simulation, has increased in the last decades. The prediction of residual stresses and strains is important for the industry, as it can ensure more efficient mechanical design and manufacturing process, reducing as well the time of post weld treatments. More specifically, in structural engineering, the residual welding stresses may have detrimental effect on earthquake, fatigue or stability behaviour. Weld simulation is a complex subject and the application of simplified models, for calculating the residual stresses, is quite usual in practice. For this reason, the results quite often deviate significantly from the experimentally measured residual stresses on real welds. This paper reports on a straightforward but robust engineering approach for the calculation of the residual welding stress field. State of the art methods are applied in some parts, whereas a new engineering approach is proposed, for modelling the material behaviour during a thermal cycle. Aim of the current work is to provide a calculation method for the engineers, which is repeatable for any material and weld geometry, using only material data easily found in literature. ... mehr

DOI: 10.1016/j.jcsr.2017.01.010
Zitationen: 41
Web of Science
Zitationen: 33
Zitationen: 39
Zugehörige Institution(en) am KIT Versuchsanstalt für Stahl, Holz und Steine (VAKA)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 0143-974X, 1873-5983
KITopen-ID: 1000065977
Erschienen in Journal of constructional steel research
Verlag Elsevier
Band 132
Seiten 83-96
Nachgewiesen in Dimensions
Web of Science
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