University of Oulu

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.

Numerical simulation of laser welded joints : modern fatigue analysis methodology

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Author: Kokko, Rami1; Vaara, Joona2; Kuivaniemi, Teemu2;
Organizations: 1Lumijoentie 8, 90400 Oulu
2Wärtsilä, Järvikatu 2-4, 65100 Vaasa
3University of Oulu, Pentti Kaiteran katu 1, 90014 Oulu
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.1 MB)
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Language: English
Published: Rakenteiden mekaniikan seura, 2021
Publish Date: 2021-06-10


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.

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Series: Rakenteiden mekaniikka
ISSN: 0783-6104
ISSN-E: 1797-5301
ISSN-L: 0783-6104
Volume: 53
Issue: 4
Pages: 342 - 355
DOI: 10.23998/RM.77613
Type of Publication: A1 Journal article – refereed
Field of Science: 214 Mechanical engineering
Copyright information: © 2020 The Authors. Open access under license CC BY 4.0.