Details
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 32nd International Ocean and Polar Engineering Conference, ISOPE 2022 |
| Publisher | International Society of Offshore and Polar Engineers |
| Pages | 2976-2983 |
| Number of pages | 8 |
| ISBN (print) | 9781880653814 |
| Publication status | Published - 2022 |
| Event | 32nd International Ocean and Polar Engineering Conference, ISOPE 2022 - Shanghai, China Duration: 5 Jun 2022 → 10 Jun 2022 |
Publication series
| Name | Proceedings of the International Offshore and Polar Engineering Conference |
|---|---|
| ISSN (Print) | 1098-6189 |
| ISSN (electronic) | 1555-1792 |
Abstract
In this paper, the aim was to determine the fatigue strength of underwater performed repair welds because lower weld quality can be expected. Wet welding partially causes internal defects and the high cooling rates result in quenched microstructures. This is assumed to significantly reduce the fatigue behavior, so that the prevailing fatigue classification may not be valid. Using different steel grades, non-load-carrying attachments were wet SMAW welded at different water depths. The samples were fatigue tested and statistically evaluated. The fatigue strengths were found to be very comparable to the atmospheric weld detail’s fatigue classes FAT71.
Keywords
- fatigue strength, S-N curve, underwater repair, underwater wet welding, wet shielded metal arc welding, Wöhler test
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Ocean Engineering
- Engineering(all)
- Mechanical Engineering
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Proceedings of the 32nd International Ocean and Polar Engineering Conference, ISOPE 2022. International Society of Offshore and Polar Engineers, 2022. p. 2976-2983 (Proceedings of the International Offshore and Polar Engineering Conference).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Nominal Stress Fatigue Assessment on Underwater Wet SMAW Fillet Welded Non-load-carrying Attachments of Construction Steel
AU - Brätz, Oliver
AU - Wolf, Thomas
AU - Osten, Julia
AU - Hassel, Thomas
AU - Henkel, Knuth Michael
N1 - Funding Information: The research project IGF 20.948 B / DVS V4.3222 "Investigations on the fatigue strength of wet-welded offshore steels" from the research association for welding and allied processes (DVS), Düsseldorf, is supported by the Federal Ministry of Economic Affairs and Climate Action through the German Federation of Industrial Research Associations (AiF) as part of the program for promoting industrial cooperative research (IGF) on the basis of a decision by the German Bundestag. The project is carried out at the Leibniz University Hannover and the Fraunhofer IGP, Rostock.
PY - 2022
Y1 - 2022
N2 - In this paper, the aim was to determine the fatigue strength of underwater performed repair welds because lower weld quality can be expected. Wet welding partially causes internal defects and the high cooling rates result in quenched microstructures. This is assumed to significantly reduce the fatigue behavior, so that the prevailing fatigue classification may not be valid. Using different steel grades, non-load-carrying attachments were wet SMAW welded at different water depths. The samples were fatigue tested and statistically evaluated. The fatigue strengths were found to be very comparable to the atmospheric weld detail’s fatigue classes FAT71.
AB - In this paper, the aim was to determine the fatigue strength of underwater performed repair welds because lower weld quality can be expected. Wet welding partially causes internal defects and the high cooling rates result in quenched microstructures. This is assumed to significantly reduce the fatigue behavior, so that the prevailing fatigue classification may not be valid. Using different steel grades, non-load-carrying attachments were wet SMAW welded at different water depths. The samples were fatigue tested and statistically evaluated. The fatigue strengths were found to be very comparable to the atmospheric weld detail’s fatigue classes FAT71.
KW - fatigue strength
KW - S-N curve
KW - underwater repair
KW - underwater wet welding
KW - wet shielded metal arc welding
KW - Wöhler test
UR - http://www.scopus.com/inward/record.url?scp=85141897857&partnerID=8YFLogxK
UR - https://onepetro.org/ISOPEIOPEC/proceedings-abstract/ISOPE22/All-ISOPE22/ISOPE-I-22-404/494016
M3 - Conference contribution
AN - SCOPUS:85141897857
SN - 9781880653814
T3 - Proceedings of the International Offshore and Polar Engineering Conference
SP - 2976
EP - 2983
BT - Proceedings of the 32nd International Ocean and Polar Engineering Conference, ISOPE 2022
PB - International Society of Offshore and Polar Engineers
T2 - 32nd International Ocean and Polar Engineering Conference, ISOPE 2022
Y2 - 5 June 2022 through 10 June 2022
ER -