INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS

Jialiang Fan; Javane Karami; Ali Shivaie Kojouri; Danny Van Hemelrijck; Anastasios P. Vassilopoulos; Véronique Michaud

INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS

Jialiang Fan, Javane Karami, Ali Shivaie Kojouri, Danny Van Hemelrijck, Anastasios P. Vassilopoulos, Véronique Michaud

Onderzoeksoutput: Conference paper › Research

Samenvatting

Adhesive joints connecting the outer shells of wind turbine blades can reach up to several cm in thickness. This leads to particular requirements in terms of processing and assessment of the mechanical properties and resistance to damage of these joints. In this paper, a commercial epoxy adhesive designed for wind turbine blades, Sikapower®-830, was characterized. Rheological and mechanical properties were assessed on the bulk resin, which were obtained during this study. The yield stress of the uncured adhesive is about 400 Pa, which is required by the manufacturing process. The fracture toughness of the cured resin, KIC, is 2.79 MPa√m. Its Young's modulus is about 2.5 GPa and tensile strength is about 40 MPa. Based on its rheological properties, double cantilever beam (DCB) specimens were produced with thick adhesive layers by adding and removing spacers during production. During the DCB tests, stick-slip and crack-kinking occurred, changing from stable to unstable crack propagation. Defined sample manufacturing methods and commercial epoxy adhesive results are shown in this paper and will be used for the development of novel adhesive formulations.

Originele taal-2	English
Titel	20th European conference on composite materials
Redacteuren	Anastasios P. Vassilopoulos, Veronique Michaud
Uitgeverij	EPFL/ESCM
Pagina's	129-136
Aantal pagina's	8
Volume	5
ISBN van elektronische versie	9782970161400
Status	Published - 2022
Evenement	20th European Conference on Composite Materials - Duur: 26 jun 2022 → 30 jun 2022

Publicatie series

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

Conference

Conference	20th European Conference on Composite Materials
Periode	26/06/22 → 30/06/22

Bibliografische nota

Funding Information:
The authors acknowledge funding under the Lead Agency scheme from the Research Foundation -Flanders (FWO Vlaanderen) through the project grant G031020N and the Swiss National Science Foundation (SNF) through the project grant 200021E_18944/1 with the title "Combined numerical and experimental approach for the development, testing and analysis of thick adhesive joints in large wind turbine blades”. The authors also acknowledge Sika Technology AG for providing materials and support.

Publisher Copyright:
©2022 Fan et al.

Copyright:
Copyright 2023 Elsevier B.V., All rights reserved.

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Link naar publicatie in Scopus

Citeer dit

Fan, J., Karami, J., Shivaie Kojouri, A., Van Hemelrijck, D., Vassilopoulos, A. P., & Michaud, V. (2022). INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS. In A. P. Vassilopoulos, & V. Michaud (editors), 20th European conference on composite materials (Vol. 5, blz. 129-136). (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability; Vol. 5). EPFL/ESCM.

Fan, Jialiang ; Karami, Javane ; Shivaie Kojouri, Ali ; Van Hemelrijck, Danny ; Vassilopoulos, Anastasios P. ; Michaud, Véronique. / INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS. 20th European conference on composite materials. redacteur / Anastasios P. Vassilopoulos ; Veronique Michaud. Vol. 5 EPFL/ESCM, 2022. blz. 129-136 (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability).

@inproceedings{33f279a6de514b1cb40d8ab85771fa5c,

title = "INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS",

abstract = "Adhesive joints connecting the outer shells of wind turbine blades can reach up to several cm in thickness. This leads to particular requirements in terms of processing and assessment of the mechanical properties and resistance to damage of these joints. In this paper, a commercial epoxy adhesive designed for wind turbine blades, Sikapower{\textregistered}-830, was characterized. Rheological and mechanical properties were assessed on the bulk resin, which were obtained during this study. The yield stress of the uncured adhesive is about 400 Pa, which is required by the manufacturing process. The fracture toughness of the cured resin, KIC, is 2.79 MPa√m. Its Young's modulus is about 2.5 GPa and tensile strength is about 40 MPa. Based on its rheological properties, double cantilever beam (DCB) specimens were produced with thick adhesive layers by adding and removing spacers during production. During the DCB tests, stick-slip and crack-kinking occurred, changing from stable to unstable crack propagation. Defined sample manufacturing methods and commercial epoxy adhesive results are shown in this paper and will be used for the development of novel adhesive formulations.",

keywords = "Adhesives, Thick joints, Fracture, Mode I",

author = "Jialiang Fan and Javane Karami and {Shivaie Kojouri}, Ali and {Van Hemelrijck}, Danny and Vassilopoulos, {Anastasios P.} and V{\'e}ronique Michaud",

note = "Funding Information: The authors acknowledge funding under the Lead Agency scheme from the Research Foundation -Flanders (FWO Vlaanderen) through the project grant G031020N and the Swiss National Science Foundation (SNF) through the project grant 200021E_18944/1 with the title {"}Combined numerical and experimental approach for the development, testing and analysis of thick adhesive joints in large wind turbine blades”. The authors also acknowledge Sika Technology AG for providing materials and support. Publisher Copyright: {\textcopyright}2022 Fan et al. Copyright: Copyright 2023 Elsevier B.V., All rights reserved.; 20th European Conference on Composite Materials ; Conference date: 26-06-2022 Through 30-06-2022",

year = "2022",

language = "English",

volume = "5",

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

publisher = "EPFL/ESCM",

pages = "129--136",

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

booktitle = "20th European conference on composite materials",

}

Fan, J, Karami, J , Shivaie Kojouri, A , Van Hemelrijck, D, Vassilopoulos, AP & Michaud, V 2022, INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS. in AP Vassilopoulos & V Michaud (redactie), 20th European conference on composite materials. vol. 5, ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability, vol. 5, EPFL/ESCM, blz. 129-136, 20th European Conference on Composite Materials, 26/06/22.

INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS. / Fan, Jialiang; Karami, Javane ; Shivaie Kojouri, Ali ; Van Hemelrijck, Danny; Vassilopoulos, Anastasios P.; Michaud, Véronique.

20th European conference on composite materials. redactie / Anastasios P. Vassilopoulos; Veronique Michaud. Vol. 5 EPFL/ESCM, 2022. blz. 129-136 (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability; Vol. 5).

Onderzoeksoutput: Conference paper › Research

TY - GEN

T1 - INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS

AU - Fan, Jialiang

AU - Karami, Javane

AU - Shivaie Kojouri, Ali

AU - Van Hemelrijck, Danny

AU - Vassilopoulos, Anastasios P.

AU - Michaud, Véronique

N1 - Funding Information: The authors acknowledge funding under the Lead Agency scheme from the Research Foundation -Flanders (FWO Vlaanderen) through the project grant G031020N and the Swiss National Science Foundation (SNF) through the project grant 200021E_18944/1 with the title "Combined numerical and experimental approach for the development, testing and analysis of thick adhesive joints in large wind turbine blades”. The authors also acknowledge Sika Technology AG for providing materials and support. Publisher Copyright: ©2022 Fan et al. Copyright: Copyright 2023 Elsevier B.V., All rights reserved.

PY - 2022

Y1 - 2022

N2 - Adhesive joints connecting the outer shells of wind turbine blades can reach up to several cm in thickness. This leads to particular requirements in terms of processing and assessment of the mechanical properties and resistance to damage of these joints. In this paper, a commercial epoxy adhesive designed for wind turbine blades, Sikapower®-830, was characterized. Rheological and mechanical properties were assessed on the bulk resin, which were obtained during this study. The yield stress of the uncured adhesive is about 400 Pa, which is required by the manufacturing process. The fracture toughness of the cured resin, KIC, is 2.79 MPa√m. Its Young's modulus is about 2.5 GPa and tensile strength is about 40 MPa. Based on its rheological properties, double cantilever beam (DCB) specimens were produced with thick adhesive layers by adding and removing spacers during production. During the DCB tests, stick-slip and crack-kinking occurred, changing from stable to unstable crack propagation. Defined sample manufacturing methods and commercial epoxy adhesive results are shown in this paper and will be used for the development of novel adhesive formulations.

AB - Adhesive joints connecting the outer shells of wind turbine blades can reach up to several cm in thickness. This leads to particular requirements in terms of processing and assessment of the mechanical properties and resistance to damage of these joints. In this paper, a commercial epoxy adhesive designed for wind turbine blades, Sikapower®-830, was characterized. Rheological and mechanical properties were assessed on the bulk resin, which were obtained during this study. The yield stress of the uncured adhesive is about 400 Pa, which is required by the manufacturing process. The fracture toughness of the cured resin, KIC, is 2.79 MPa√m. Its Young's modulus is about 2.5 GPa and tensile strength is about 40 MPa. Based on its rheological properties, double cantilever beam (DCB) specimens were produced with thick adhesive layers by adding and removing spacers during production. During the DCB tests, stick-slip and crack-kinking occurred, changing from stable to unstable crack propagation. Defined sample manufacturing methods and commercial epoxy adhesive results are shown in this paper and will be used for the development of novel adhesive formulations.

KW - Adhesives, Thick joints, Fracture, Mode I

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M3 - Conference paper

VL - 5

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

SP - 129

EP - 136

BT - 20th European conference on composite materials

A2 - Vassilopoulos, Anastasios P.

A2 - Michaud, Veronique

PB - EPFL/ESCM

T2 - 20th European Conference on Composite Materials

Y2 - 26 June 2022 through 30 June 2022

ER -

Fan J, Karami J , Shivaie Kojouri A , Van Hemelrijck D, Vassilopoulos AP, Michaud V. INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS. In Vassilopoulos AP, Michaud V, redacteurs, 20th European conference on composite materials. Vol. 5. EPFL/ESCM. 2022. blz. 129-136. (ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability).

INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS

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Bibliografische nota

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