Numerical simulation of laser welded joints: modern fatigue analysis methodology

Authors

  • Rami Markus Kokko
  • Joona Vaara Wärtsilä
  • Teemu Kuivaniemi Wärtsilä
  • Tero Frondelius University of Oulu
DOI: https://doi.org/10.23998/rm.77613

Keywords:

welding, laser welding, welding modelling, residual stress, fatigue

Abstract

Welding always induces discontinuities and imperfections in the structure that allows for potential fatigue cracks. Welding effects thermal strains, which yield to residual stresses of the structure that have a noticeable effect on the fatigue behaviour of the structure. Welding inexorably leads to microstructure and geometry changes in the welding region. Material internal changes, residual stresses and microstructural changes can be simulated numerically, and the simulation results can be used in cyclic loading analysis in FEA.

Issue
Vol. 53 No. 4 (2020)
Section
Articles

Published

2020-10-22

How to Cite

Kokko, R. M., Vaara, J., Kuivaniemi, T., & Frondelius, T. (2020). Numerical simulation of laser welded joints: modern fatigue analysis methodology. Journal of Structural Mechanics, 53(4), 342–355. https://doi.org/10.23998/rm.77613

Copyright (c) 2020 Rami Markus Kokko, Joona Vaara, Teemu Kuivaniemi, Tero Frondelius

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.