Numerical simulation of laser welded joints: modern fatigue analysis methodology

Autor/innen

  • Rami Markus Kokko
  • Joona Vaara Wärtsilä
  • Teemu Kuivaniemi Wärtsilä
  • Tero Frondelius University of Oulu

Schlagworte:

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.

Rubrik
Artikkelit

Veröffentlicht

2020-10-22

Zitationsvorschlag

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