PSI - Issue 59

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000 – 000

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ScienceDirect

Procedia Structural Integrity 59 (2024) 158–166

© 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers Abstract Corrosion problems in offshore wind power plants are a significant contributor to operation and maintenance (O&M) costs, typically around 15 – 30 percent of the total life cycle costs. Corrosion can degrade the structural material, contribute to fatigue cracking, brittle failure, and unstable failure, and the integrity of the entire structure can be significantly compromised. In the literature, there are many numerical simulations of the growth of pits and cracks in seawater under the influence of mechanical loads. Computer modeling allows quick assessment of the corrosion processes development; however, most software packages have limitations when building models. To study the corrosion processes of wind power plants, it is suggested to use modeling in COMSOL Multiphysics followed by its correction using experimentally measured electrochemical parameters in order to quickly assess the impact of changes in environmental parameters on the speed of corrosion processes and to identify areas of the structure that require additional protection and regular monitoring. In the future, combining field and experimental studies with computer modeling of corrosion processes is necessary. © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Corrosion modelling of welded joints of wind power facilities Liubomyr Poberezhnyi a, *, Sylvia Kessler a , Igor Okipnyi b a Helmut Schmidt University/University of the Federal Armed Forces, Holstenhofweg 85, Hamburg 22043, Germany b Ternopil Ivan Puluj National Technical University, Ruska Street, 56, Ternopil 46001, Ukraine Abstract Corrosion problems in offshore wind power plants are a significant contributor to operation and maintenance (O&M) costs, typically around 15 – 30 percent of the total life cycle costs. Corrosion can degrade the structural material, contribute to fatigue cracking, brittle failure, and unstable failure, and the integrity of the entire structure can be significantly compromised. In the literature, there are many numerical simulations of the growth of pits and cracks in seawater under the influence of mechanical loads. Computer modeling allows quick assessment of the corrosion processes development; however, most software packages have limitations when building models. To study the corrosion processes of wind power plants, it is suggested to use modeling in COMSOL Multiphysics followed by its correction using experimentally measured electrochemical parameters in order to quickly assess the impact of changes in environmental parameters on the speed of corrosion processes and to identify areas of the structure that require additional protection and regular monitoring. In the future, combining field and experimental studies with computer modeling of corrosion processes is necessary. VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Corrosion modelling of welded joints of wind power facilities Liubomyr Poberezhnyi a, *, Sylvia Kessler a , Igor Okipnyi b a Helmut Schmidt University/University of the Federal Armed Forces, Holstenhofweg 85, Hamburg 22043, Germany b Ternopil Ivan Puluj National Technical University, Ruska Street, 56, Ternopil 46001, Ukraine Keywords: Windmill power facilities; welded joint corrosion; defect interaction; corrosion modelling; COMSOL simulation. Keywords: Windmill power facilities; welded joint corrosion; defect interaction; corrosion modelling; COMSOL simulation.

* Corresponding author. Tel.: +4915164075259. E-mail address: poberezl@hsu-hh.de * Corresponding author. Tel.: +4915164075259. E-mail address: poberezl@hsu-hh.de

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of DMDP 2023 Organizers 10.1016/j.prostr.2024.04.024