Journal ArticleDOI
Numerical calculation of residual stress development of multi-pass gas metal arc welding
TLDR
In this paper, a six bead multi-pass gas metal arc weld of 20mm thick structural steel S355J2+N is experimentally and numerically investigated and the experimentally determined and calculated residual stresses are in a good agreement.About:
This article is published in Journal of Constructional Steel Research.The article was published on 2012-05-01. It has received 69 citations till now. The article focuses on the topics: Residual stress & Heat-affected zone.read more
Citations
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Effect of boundary conditions on residual stress and distortion in T-joint welds
TL;DR: In this article, the authors investigated the welding residual stress and distortion in T-joint welds under various mechanical boundary conditions, and the results showed that the transverse residual stress, vertical displacement, angular distortion and transverse shrinkage depend significantly on the boundary conditions and the influence on the longitudinal residual stress is not significant.
Journal ArticleDOI
Characterization of material properties and heat source parameters in welding simulation of two overlapping beads on a substrate plate
TL;DR: In this article, the authors presented several aspects of characterization of welding heat source parameters in Goldak's double ellipsoidal model using Sysweld simulation of welding of two overlapping beads on a substrate steel plate.
Journal ArticleDOI
Parameter determination of double-ellipsoidal heat source model and its application in the multi-pass welding process
TL;DR: In this article, a neural-network program based on the Levenberg-Marquardt algorithm is developed to predict the parameters of Goldak's double-ellipsoidal heat source model.
Journal ArticleDOI
Solid-state phase transformation and strain hardening on the residual stresses in S355 steel weldments
TL;DR: In this paper, a series of numerical simulations were performed to examine the variability in welding residual stresses (WRS) for different material models, and the mixed hardening model provided the more accurate prediction of WRS.
Journal ArticleDOI
Significance of Finite Element Models and Solid-State Phase Transformation on the Evaluation of Weld Induced Residual Stresses
TL;DR: In this paper, different finite element (FE) models were prepared to investigate weld induced residual stresses in thick multi-pass butt welded joint of SA516 Gr. 70 plates, and the competence of these FE models on the accuracy of predicting residual stress distribution across the weld cross-section was investigated by comparing it with the experimental results.
References
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Journal ArticleDOI
A new finite element model for welding heat sources
TL;DR: In this article, a double ellipsoidal geometry is proposed to model both shallow penetration arc welding processes and the deeper penetration laser and electron beam processes, which can be easily changed to handle non-axisymmetric cases such as strip electrodes or dissimilar metal joining.
Journal ArticleDOI
A general equation prescribing the extent of the austenite-martensite transformation in pure iron-carbon alloys and plain carbon steels
D.P. Koistinen,R.E. Marburger +1 more
Journal ArticleDOI
Residual stress. Part 2 – Nature and origins
TL;DR: In this paper, the authors examine the nature and origins of residual stresses across a range of scales, from the long range residual stress fields in engineering components and welded structures, through the interphase stresses present in composites and coatings, to the microscale interactions of phase transformations with local stresses.
Journal ArticleDOI
Mathematical modelling of transformation plasticity in steels I: Case of ideal-plastic phases
TL;DR: In this article, a theoretical approach to the problem of transformation plasticity in steels is proposed, in the case where the Magee mechanism is negligible and the phases are ideal-plastic.
Journal ArticleDOI
A new kinetic model for anisothermal metallurgical transformations in steels including effect of austenite grain size
Jean-Baptiste Leblond,J. Devaux +1 more
TL;DR: In this paper, a new kinetic model for anisothermal metallurgical transformations, valid for diffusion controlled as well as martensitic transformations, is proposed, which is first described in the case of two phases and a unique transformation, then extended to n phases and several (possibly simultaneous and unsymmetrical) transformations.
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