TUHH Open Research
Help
  • Log In
    New user? Click here to register.Have you forgotten your password?
  • English
  • Deutsch
  • Communities & Collections
  • Publications
  • Research Data
  • People
  • Institutions
  • Projects
  • Statistics
  1. Home
  2. TUHH
  3. Publications
  4. Influence of pitting corrosion on the fatigue strength of offshore steel structures based on 3D surface scans
 
Options

Influence of pitting corrosion on the fatigue strength of offshore steel structures based on 3D surface scans

Citation Link: https://doi.org/10.15480/882.4528
Publikationstyp
Journal Article
Date Issued
2022-07-12
Sprache
English
Author(s)
Shojai, Sulaiman  
Schaumann, Peter  
Braun, Moritz  orcid-logo
Ehlers, Sören  
Institut
Konstruktion und Festigkeit von Schiffen M-10  
TORE-DOI
10.15480/882.4528
TORE-URI
http://hdl.handle.net/11420/13354
Journal
International journal of fatigue  
Volume
164
Article Number
107128
Citation
International Journal of Fatigue 164: 107128 (2022-11-01)
Publisher DOI
10.1016/j.ijfatigue.2022.107128
Scopus ID
2-s2.0-85134428847
Publisher
Elsevier
Support structures for offshore wind turbines and the corresponding transformer platforms are highly susceptible to corrosion. In particular, the phenomenon of pitting is crucial, as it leads to local stress concentrations and thus affects the fatigue life of structures. Despite corrosion protection systems, corrosion cannot be completely avoided, which can lead to pitting corrosion on the steel surface. This leads to fatigue life reduction, since the structures are exposed to high dynamic loads. Local stress concentrations can be considered in local concepts but so far, corrosion effects in local concepts are insufficiently defined. Hence, this paper aims to investigate the impact of pitting corrosion and the corresponding stress concentration on the fatigue life endurance of structural steel, used for offshore wind support structures. For this purpose, a total of 36 pre-corroded specimens with pitting were tested against fatigue failure and monitored with Digital Image Correlation. In addition, the specimens were scanned with a high-resolution 3D scanner and converted to numerical models by reverse engineering, to determine the stress concentrations on the surface. In most cases the hotspots from the numerical model coincide with the crack location detected with Digital Image Correlation. The notch effect has a significant impact on the crack location and crack path.
Subjects
3D-Surface scan
Corrosion fatigue
Offshore-wind
Pitting corrosion
Reverse engineering
Stress concentrations
DDC Class
600: Technik
More Funding Information
The project ISyMOO is funded by the Federal Ministry of Economic Affairs and Climate Action (BMWK) through the 6th National Energy
Research Program under the funding number 0324254A.
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
Loading...
Thumbnail Image
Name

1-s2.0-S014211232200384X-main.pdf

Size

29.6 MB

Format

Adobe PDF

TUHH
Weiterführende Links
  • Contact
  • Send Feedback
  • Cookie settings
  • Privacy policy
  • Impress
DSpace Software

Built with DSpace-CRIS software - Extension maintained and optimized by 4Science
Design by effective webwork GmbH

  • Deutsche NationalbibliothekDeutsche Nationalbibliothek
  • ORCiD Member OrganizationORCiD Member Organization
  • DataCiteDataCite
  • Re3DataRe3Data
  • OpenDOAROpenDOAR
  • OpenAireOpenAire
  • BASE Bielefeld Academic Search EngineBASE Bielefeld Academic Search Engine
Feedback