Details
| Original language | English |
|---|---|
| Article number | 012022 |
| Journal | Journal of Physics: Conference Series |
| Volume | 1669 |
| Issue number | 1 |
| Publication status | Published - 26 Oct 2020 |
| Event | 17th Deep Sea Offshore Wind R and D Conference, DeepWind 2020 - Trondheim, Norway Duration: 15 Jan 2020 → 17 Jan 2020 |
Abstract
The development within the offshore wind sector towards more powerful turbines combined with increasing water depth for new wind parks is challenging both the designer as well as the manufacturer of bottom fixed support structures. Besides XL-monopiles, the market developed an innovative and economic jacket support structure which is based on automatically manufactured tubular joints combined with standardized pipes. Besides the improvements for a serial manufacturing process the automatically welded tubular joints show a great potential in terms of fatigue resistance e.g. due to a smooth weld geometry without sharp notches. However, these benefits are not considered yet within the fatigue design process of automatically manufactured jacket substructures according to current standards due to the lack of suitable S-N curves. Therefore, 32 axial fatigue tests on single and double-sided automatically welded tubular X-joints have been performed to determine a new hot spot stress related S-N curve. Based on these constant amplitude fatigue tests a new S-N curve equal to a FAT 126 curve was computed which implicitly includes the benefits of the automatically welding procedure.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Journal of Physics: Conference Series, Vol. 1669, No. 1, 012022, 26.10.2020.
Research output: Contribution to journal › Conference article › Research › peer review
}
TY - JOUR
T1 - Experimental investigations on the fatigue resistance of automatically welded tubular X-joints for jacket support structures
AU - Schürmann, K.
AU - Schaumann, P.
AU - Pittner, A.
AU - Rethmeier, M.
N1 - Funding Information: The presented results were developed within the German FOSTA joint research project ‘FATInWeld’ supported via AiF (IGF 19104 N) within the programme for promoting the Industrial Collective Research (IGF) of the German Ministry of Economic Affairs and Energy (BMWi), based on a resolution of the German Parliament. The authors express their deep gratitude for the financial support received from the BMWi, the AiF, the FOSTA and from the companies involved in the project.
PY - 2020/10/26
Y1 - 2020/10/26
N2 - The development within the offshore wind sector towards more powerful turbines combined with increasing water depth for new wind parks is challenging both the designer as well as the manufacturer of bottom fixed support structures. Besides XL-monopiles, the market developed an innovative and economic jacket support structure which is based on automatically manufactured tubular joints combined with standardized pipes. Besides the improvements for a serial manufacturing process the automatically welded tubular joints show a great potential in terms of fatigue resistance e.g. due to a smooth weld geometry without sharp notches. However, these benefits are not considered yet within the fatigue design process of automatically manufactured jacket substructures according to current standards due to the lack of suitable S-N curves. Therefore, 32 axial fatigue tests on single and double-sided automatically welded tubular X-joints have been performed to determine a new hot spot stress related S-N curve. Based on these constant amplitude fatigue tests a new S-N curve equal to a FAT 126 curve was computed which implicitly includes the benefits of the automatically welding procedure.
AB - The development within the offshore wind sector towards more powerful turbines combined with increasing water depth for new wind parks is challenging both the designer as well as the manufacturer of bottom fixed support structures. Besides XL-monopiles, the market developed an innovative and economic jacket support structure which is based on automatically manufactured tubular joints combined with standardized pipes. Besides the improvements for a serial manufacturing process the automatically welded tubular joints show a great potential in terms of fatigue resistance e.g. due to a smooth weld geometry without sharp notches. However, these benefits are not considered yet within the fatigue design process of automatically manufactured jacket substructures according to current standards due to the lack of suitable S-N curves. Therefore, 32 axial fatigue tests on single and double-sided automatically welded tubular X-joints have been performed to determine a new hot spot stress related S-N curve. Based on these constant amplitude fatigue tests a new S-N curve equal to a FAT 126 curve was computed which implicitly includes the benefits of the automatically welding procedure.
UR - http://www.scopus.com/inward/record.url?scp=85096470319&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1669/1/012022
DO - 10.1088/1742-6596/1669/1/012022
M3 - Conference article
AN - SCOPUS:85096470319
VL - 1669
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012022
T2 - 17th Deep Sea Offshore Wind R and D Conference, DeepWind 2020
Y2 - 15 January 2020 through 17 January 2020
ER -