EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES

Ioannis Katsivalis; Angeliki Chanteli; William Finnegan; Trevor Young

EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES

Ioannis Katsivalis
, Angeliki Chanteli
, William Finnegan
, Trevor Young

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Modern wind turbine blades experience tip speeds which can exceed 110 m/s. At such speeds, rain erosion of the Leading-Edge (LE) can have a significant impact on the performance of the blades, leading to reduced efficiency and increased need for repairs. To optimize the performance of the blades and reduce the effects of rain erosion, polymeric coatings, also known as Leading-Edge Protection (LEP) materials, are employed by the wind energy sector. In this work, the viscoelastic properties of two LEP materials are characterized using DMTA testing, while Rain Erosion Testing (RET) is also performed utilizing a whirling arm testing rig. The damage and failure of the LEP materials are characterized by analyzing the mass loss/exposure time relationships, photographic evidence, and CT-scanning. It is shown that porosity in the critical GFRP/LEP interface leads to stress concentrations and triggers an interfacial failure mode.

Original language	English
Title of host publication	Applications and Structures
Editors	Anastasios P. Vassilopoulos, Veronique Michaud
Publisher	Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)
Pages	105-112
Number of pages	8
ISBN (Electronic)	9782970161400
Publication status	Published - 2022
Event	20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 - Lausanne, Switzerland Duration: 26 Jun 2022 → 30 Jun 2022

Publication series

Name	ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
Volume	5

Conference

Conference	20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022
Country/Territory	Switzerland
City	Lausanne
Period	26/06/22 → 30/06/22

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

CT scanning
Leading-Edge Protection materials
Rain Erosion Testing
Viscoelastic properties
Wind energy

Cite this

Katsivalis, I., Chanteli, A., Finnegan, W., & Young, T. (2022). EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES. In A. P. Vassilopoulos, & V. Michaud (Eds.), Applications and Structures (pp. 105-112). (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability; Vol. 5). Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL).

Katsivalis, Ioannis ; Chanteli, Angeliki ; Finnegan, William et al. / EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES. Applications and Structures. editor / Anastasios P. Vassilopoulos ; Veronique Michaud. Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL), 2022. pp. 105-112 (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability).

@inproceedings{03b1406d33dc4fe7a6dab7484e44c299,

title = "EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES",

abstract = "Modern wind turbine blades experience tip speeds which can exceed 110 m/s. At such speeds, rain erosion of the Leading-Edge (LE) can have a significant impact on the performance of the blades, leading to reduced efficiency and increased need for repairs. To optimize the performance of the blades and reduce the effects of rain erosion, polymeric coatings, also known as Leading-Edge Protection (LEP) materials, are employed by the wind energy sector. In this work, the viscoelastic properties of two LEP materials are characterized using DMTA testing, while Rain Erosion Testing (RET) is also performed utilizing a whirling arm testing rig. The damage and failure of the LEP materials are characterized by analyzing the mass loss/exposure time relationships, photographic evidence, and CT-scanning. It is shown that porosity in the critical GFRP/LEP interface leads to stress concentrations and triggers an interfacial failure mode.",

keywords = "CT scanning, Leading-Edge Protection materials, Rain Erosion Testing, Viscoelastic properties, Wind energy",

author = "Ioannis Katsivalis and Angeliki Chanteli and William Finnegan and Trevor Young",

note = "Publisher Copyright: {\textcopyright}2022 Katsivalis et al.; 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022 ; Conference date: 26-06-2022 Through 30-06-2022",

year = "2022",

language = "English",

series = "ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability",

publisher = "Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)",

pages = "105--112",

editor = "Vassilopoulos, \{Anastasios P.\} and Veronique Michaud",

booktitle = "Applications and Structures",

}

Katsivalis, I, Chanteli, A, Finnegan, W & Young, T 2022, EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES. in AP Vassilopoulos & V Michaud (eds), Applications and Structures. ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability, vol. 5, Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL), pp. 105-112, 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022, Lausanne, Switzerland, 26/06/22.

EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES. / Katsivalis, Ioannis; Chanteli, Angeliki; Finnegan, William et al.
Applications and Structures. ed. / Anastasios P. Vassilopoulos; Veronique Michaud. Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL), 2022. p. 105-112 (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability; Vol. 5).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES

AU - Katsivalis, Ioannis

AU - Chanteli, Angeliki

AU - Finnegan, William

AU - Young, Trevor

PY - 2022

Y1 - 2022

N2 - Modern wind turbine blades experience tip speeds which can exceed 110 m/s. At such speeds, rain erosion of the Leading-Edge (LE) can have a significant impact on the performance of the blades, leading to reduced efficiency and increased need for repairs. To optimize the performance of the blades and reduce the effects of rain erosion, polymeric coatings, also known as Leading-Edge Protection (LEP) materials, are employed by the wind energy sector. In this work, the viscoelastic properties of two LEP materials are characterized using DMTA testing, while Rain Erosion Testing (RET) is also performed utilizing a whirling arm testing rig. The damage and failure of the LEP materials are characterized by analyzing the mass loss/exposure time relationships, photographic evidence, and CT-scanning. It is shown that porosity in the critical GFRP/LEP interface leads to stress concentrations and triggers an interfacial failure mode.

AB - Modern wind turbine blades experience tip speeds which can exceed 110 m/s. At such speeds, rain erosion of the Leading-Edge (LE) can have a significant impact on the performance of the blades, leading to reduced efficiency and increased need for repairs. To optimize the performance of the blades and reduce the effects of rain erosion, polymeric coatings, also known as Leading-Edge Protection (LEP) materials, are employed by the wind energy sector. In this work, the viscoelastic properties of two LEP materials are characterized using DMTA testing, while Rain Erosion Testing (RET) is also performed utilizing a whirling arm testing rig. The damage and failure of the LEP materials are characterized by analyzing the mass loss/exposure time relationships, photographic evidence, and CT-scanning. It is shown that porosity in the critical GFRP/LEP interface leads to stress concentrations and triggers an interfacial failure mode.

KW - CT scanning

KW - Leading-Edge Protection materials

KW - Rain Erosion Testing

KW - Viscoelastic properties

KW - Wind energy

UR - https://www.scopus.com/pages/publications/85149329091

M3 - Conference contribution

AN - SCOPUS:85149329091

T3 - ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability

SP - 105

EP - 112

BT - Applications and Structures

A2 - Vassilopoulos, Anastasios P.

A2 - Michaud, Veronique

PB - Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL)

T2 - 20th European Conference on Composite Materials: Composites Meet Sustainability, ECCM 2022

Y2 - 26 June 2022 through 30 June 2022

ER -

Katsivalis I, Chanteli A, Finnegan W, Young T. EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES. In Vassilopoulos AP, Michaud V, editors, Applications and Structures. Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL). 2022. p. 105-112. (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability).

EFFECT OF MECHANICAL PROPERTIES AND INTERFACIAL CHARACTERISTICS ON THE DURABILITY OF LEADING-EDGE PROTECTION (LEP) MATERIALS FOR WIND TURBINE BLADES

Abstract

Publication series

Conference

UN SDGs

Keywords

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