Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis

Jose Mishael; Pablo G. Morato; Philippe Rigo

Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis

Jose Mishael, Pablo G. Morato, Philippe Rigo

Architectural Technology

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

This study investigates the behavior of interacting surface cracks at the circumferential weld toe of monopile-supported offshore wind turbines. Relying on a numerical model that explicitly considers weld profiles, we explore the impact of crack interaction and loading scenarios on crack propagation. Our findings reveal that, initially, surface cracks grow independently, resembling single crack behavior. However, a pronounced interaction effect accelerates their growth as cracks propagate further, potentially leading to crack coalescence, high stress intensity factors, and reduced fatigue life. Consequently, this work highlights the need for integrating specific weld geometry representation in numerical models, as neglecting this can lead to significantly inaccurate fatigue life estimates in typical practical applications. Moreover, this study points out the challenge in accessing representative crack growth material parameters, vital for accurately evaluating the fatigue life of structural connections in offshore wind turbines.

Original language	English
Title of host publication	Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference
Editors	Jin S. Chung, Igor Buzin, Hiroyasu Kawai, Hua Liu, Ivana Kubat, Bor-Feng Peng, Ali Reza, Venkatachalam Sriram, Suak Ho Van, More Editors
Place of Publication	Rhodes
Publisher	International Society of Offshore and Polar Engineers (ISOPE)
Pages	3116-3123
Number of pages	8
ISBN (Print)	978-1-880653-78-4
Publication status	Published - 2024
Event	The 34th International Ocean and Polar Engineering Conference - Rodos Palace Hotel, Rhodes, Greece Duration: 16 Jun 2024 → 21 Jun 2024 https://tethys.pnnl.gov/events/34th-international-ocean-polar-engineering-conference-isope-2024

Publication series

Name	The Proceedings of the ... International Offshore and Polar Engineering Conference
Publisher	International Society of Offshore and Polar Engineers (ISOPE)
ISSN (Print)	1098-6189

Conference

Conference	The 34th International Ocean and Polar Engineering Conference
Country/Territory	Greece
City	Rhodes
Period	16/06/24 → 21/06/24
Internet address	https://tethys.pnnl.gov/events/34th-international-ocean-polar-engineering-conference-isope-2024

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

fatigue crack growth
stress intensity factor
crack interaction
crack coalescence
welded structures
offshore wind turbine foundations

Access to Document

isope-i-24-442Final published version, 4.27 MB

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Mishael, J., Morato, P. G., & Rigo, P. (2024). Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis. In J. S. Chung, I. Buzin, H. Kawai, H. Liu, I. Kubat, B.-F. Peng, A. Reza, V. Sriram, S. H. Van, & More Editors (Eds.), Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference (pp. 3116-3123). Article ISOPE-I-24-442 (The Proceedings of the ... International Offshore and Polar Engineering Conference). International Society of Offshore and Polar Engineers (ISOPE).

Mishael, Jose ; Morato, Pablo G. ; Rigo, Philippe. / Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis. Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference. editor / Jin S. Chung ; Igor Buzin ; Hiroyasu Kawai ; Hua Liu ; Ivana Kubat ; Bor-Feng Peng ; Ali Reza ; Venkatachalam Sriram ; Suak Ho Van ; More Editors. Rhodes : International Society of Offshore and Polar Engineers (ISOPE), 2024. pp. 3116-3123 (The Proceedings of the ... International Offshore and Polar Engineering Conference).

@inproceedings{6e161ac38f9c4b59971d9c0808687f51,

title = "Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis",

abstract = "This study investigates the behavior of interacting surface cracks at the circumferential weld toe of monopile-supported offshore wind turbines. Relying on a numerical model that explicitly considers weld profiles, we explore the impact of crack interaction and loading scenarios on crack propagation. Our findings reveal that, initially, surface cracks grow independently, resembling single crack behavior. However, a pronounced interaction effect accelerates their growth as cracks propagate further, potentially leading to crack coalescence, high stress intensity factors, and reduced fatigue life. Consequently, this work highlights the need for integrating specific weld geometry representation in numerical models, as neglecting this can lead to significantly inaccurate fatigue life estimates in typical practical applications. Moreover, this study points out the challenge in accessing representative crack growth material parameters, vital for accurately evaluating the fatigue life of structural connections in offshore wind turbines.",

keywords = "fatigue crack growth, stress intensity factor, crack interaction, crack coalescence, welded structures, offshore wind turbine foundations",

author = "Jose Mishael and Morato, {Pablo G.} and Philippe Rigo",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; The 34th International Ocean and Polar Engineering Conference ; Conference date: 16-06-2024 Through 21-06-2024",

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language = "English",

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series = "The Proceedings of the ... International Offshore and Polar Engineering Conference",

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pages = "3116--3123",

editor = "Chung, {Jin S.} and Igor Buzin and Hiroyasu Kawai and Hua Liu and Ivana Kubat and Bor-Feng Peng and Ali Reza and Venkatachalam Sriram and Van, {Suak Ho} and {More Editors}",

booktitle = "Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference",

url = "https://tethys.pnnl.gov/events/34th-international-ocean-polar-engineering-conference-isope-2024",

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Mishael, J, Morato, PG & Rigo, P 2024, Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis. in JS Chung, I Buzin, H Kawai, H Liu, I Kubat, B-F Peng, A Reza, V Sriram, SH Van & More Editors (eds), Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference., ISOPE-I-24-442, The Proceedings of the ... International Offshore and Polar Engineering Conference, International Society of Offshore and Polar Engineers (ISOPE), Rhodes, pp. 3116-3123, The 34th International Ocean and Polar Engineering Conference, Rhodes, Greece, 16/06/24.

Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis. / Mishael, Jose; Morato, Pablo G.; Rigo, Philippe.
Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference. ed. / Jin S. Chung; Igor Buzin; Hiroyasu Kawai; Hua Liu; Ivana Kubat; Bor-Feng Peng; Ali Reza; Venkatachalam Sriram; Suak Ho Van; More Editors. Rhodes: International Society of Offshore and Polar Engineers (ISOPE), 2024. p. 3116-3123 ISOPE-I-24-442 (The Proceedings of the ... International Offshore and Polar Engineering Conference).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis

AU - Mishael, Jose

AU - Morato, Pablo G.

AU - Rigo, Philippe

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2024

Y1 - 2024

N2 - This study investigates the behavior of interacting surface cracks at the circumferential weld toe of monopile-supported offshore wind turbines. Relying on a numerical model that explicitly considers weld profiles, we explore the impact of crack interaction and loading scenarios on crack propagation. Our findings reveal that, initially, surface cracks grow independently, resembling single crack behavior. However, a pronounced interaction effect accelerates their growth as cracks propagate further, potentially leading to crack coalescence, high stress intensity factors, and reduced fatigue life. Consequently, this work highlights the need for integrating specific weld geometry representation in numerical models, as neglecting this can lead to significantly inaccurate fatigue life estimates in typical practical applications. Moreover, this study points out the challenge in accessing representative crack growth material parameters, vital for accurately evaluating the fatigue life of structural connections in offshore wind turbines.

AB - This study investigates the behavior of interacting surface cracks at the circumferential weld toe of monopile-supported offshore wind turbines. Relying on a numerical model that explicitly considers weld profiles, we explore the impact of crack interaction and loading scenarios on crack propagation. Our findings reveal that, initially, surface cracks grow independently, resembling single crack behavior. However, a pronounced interaction effect accelerates their growth as cracks propagate further, potentially leading to crack coalescence, high stress intensity factors, and reduced fatigue life. Consequently, this work highlights the need for integrating specific weld geometry representation in numerical models, as neglecting this can lead to significantly inaccurate fatigue life estimates in typical practical applications. Moreover, this study points out the challenge in accessing representative crack growth material parameters, vital for accurately evaluating the fatigue life of structural connections in offshore wind turbines.

KW - fatigue crack growth

KW - stress intensity factor

KW - crack interaction

KW - crack coalescence

KW - welded structures

KW - offshore wind turbine foundations

UR - https://onepetro.org/ISOPEIOPEC/proceedings-abstract/ISOPE24/All-ISOPE24/ISOPE-I-24-442/546804

M3 - Conference contribution

SN - 978-1-880653-78-4

T3 - The Proceedings of the ... International Offshore and Polar Engineering Conference

SP - 3116

EP - 3123

BT - Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference

A2 - Chung, Jin S.

A2 - Buzin, Igor

A2 - Kawai, Hiroyasu

A2 - Liu, Hua

A2 - Kubat, Ivana

A2 - Peng, Bor-Feng

A2 - Reza, Ali

A2 - Sriram, Venkatachalam

A2 - Van, Suak Ho

A2 - More Editors, null

PB - International Society of Offshore and Polar Engineers (ISOPE)

CY - Rhodes

T2 - The 34th International Ocean and Polar Engineering Conference

Y2 - 16 June 2024 through 21 June 2024

ER -

Mishael J, Morato PG, Rigo P. Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis. In Chung JS, Buzin I, Kawai H, Liu H, Kubat I, Peng BF, Reza A, Sriram V, Van SH, More Editors, editors, Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference. Rhodes: International Society of Offshore and Polar Engineers (ISOPE). 2024. p. 3116-3123. ISOPE-I-24-442. (The Proceedings of the ... International Offshore and Polar Engineering Conference).

Propagation of Interacting Cracks in Offshore Wind Welded Structures Through Numerical Analysis

Abstract

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Keywords

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