Fracture and Structural Integrity e-ISSN 1971-8993 Open access
SI: Fracture and Structural integrity: ten years of F&IS Vol. 13, No. 47 (2019)

Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling

Author and affiliation details
  • Paolo Ferro Corresponding author ferro@gest.unipd.it
  • Filippo Berto
  • Franco Bonollo
  • Roberto Montanari
DOI
10.3221/IGF-ESIS.47.17
Pages
221-230
Published
Published inVol. 13, No. 47 (2019)Go to the issue

Abstract

TIG-dressing is a technique used to improve the fatigue strength of welded joints by a remelting of the weld toe region that promotes both a smoother transition between the plate and the weld crown and a residual stress redistribution. These effects are very hard to be quantified by numerical simulation since a highly coupled thermo-fluid-mechanical analysis is required. However, if the final weld toe geometry is supposed to be known or a-posteriori measured, a simplified numerical method can be used to simulate the residual tress redistribution that uses the activation-deactivation function of elements. This technique is applied to a real steel weldment and results, in terms of phases proportions and residual stress redistribution, were found in good agreement both with data coming from metallurgical analysis and the improved fatigue strength observed on welded joints after the TIG-dressing operation.

Keywords

Article history

  1. ReceivedUntil the next stage: 49 days
  2. Revision requestedUntil the next stage: 17 days
  3. RevisedUntil the next stage: 0 days
  4. AcceptedUntil the next stage: 73 days
  5. Published

How to cite

APA

Ferro, P., Berto, F., Bonollo, F., & Montanari, R. (2018). Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling. Fracture and Structural Integrity, 13(47), 221–230. https://doi.org/10.3221/IGF-ESIS.47.17

IEEE

P. Ferro, F. Berto, F. Bonollo, and R. Montanari, “Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling,” Fracture and Structural Integrity, vol. 13, no. 47, pp. 221–230, 2018, doi: 10.3221/IGF-ESIS.47.17.

MLA

Ferro, Paolo, et al. “Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling.” Fracture and Structural Integrity, vol. 13, no. 47, 2018, pp. 221–230. https://doi.org/10.3221/IGF-ESIS.47.17.

Chicago

Ferro, Paolo, Filippo Berto, Franco Bonollo, and Roberto Montanari. 2018. “Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling.” Fracture and Structural Integrity 13 (47): 221–230. https://doi.org/10.3221/IGF-ESIS.47.17.

Harvard

Ferro, P., Berto, F., Bonollo, F. and Montanari, R. (2018) ‘Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling’, Fracture and Structural Integrity, 13(47), pp. 221–230. doi: 10.3221/IGF-ESIS.47.17.

Vancouver

Ferro P, Berto F, Bonollo F, Montanari R. Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling. Fracture and Structural Integrity. 2018;13(47):221-230. doi:10.3221/IGF-ESIS.47.17

BibTeX

@article{ferro2018, author = {Ferro, Paolo and Berto, Filippo and Bonollo, Franco and Montanari, Roberto}, title = {Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling}, journal = {Fracture and Structural Integrity}, year = {2018}, volume = {13}, number = {47}, pages = {221--230}, doi = {10.3221/IGF-ESIS.47.17}, url = {https://doi.org/10.3221/IGF-ESIS.47.17}, issn = {1971-8993} }

RIS

TY - JOUR AU - Ferro, Paolo AU - Berto, Filippo AU - Bonollo, Franco AU - Montanari, Roberto TI - Numerical modelling of residual stress redistribution induced by TIG-dressing: TIG-dressing numerical modelling JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2018 DA - 2018/12/03 VL - 13 IS - 47 SP - 221 EP - 230 DO - 10.3221/IGF-ESIS.47.17 UR - https://doi.org/10.3221/IGF-ESIS.47.17 SN - 1971-8993 ER -

Licence

Copyright © 2019 Paolo Ferro, Filippo Berto, Franco Bonollo, Roberto Montanari.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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