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| Soufivand, Anahita Ahmadi |
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| Fearraigh, B. Ó. |
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| Bhaswant, Maharshi |
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| Mouni, Lotfi |
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| Ghosh, Angsula |
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| Romero Resendiz, Liliana |
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| Mendesfelipe, Cristian |
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| Golias, Evangelos | Lund |
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| Pons, Tony |
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| Ferreira, Saulo Rocha |
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| Sanguineti, M. |
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| Ziegler, Andreas |
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| Zhang, Kailun |
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| Höfer, Philipp |
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| Zhengis, Arshyn |
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| Danelon, Miguel R. |
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| Baral, P. |
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| Beltrán, Ana M. |
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| Vippola, Minnamari | Tampere |
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| Perna, Alessia Serena | Naples |
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| Larsson, Henrik | Stockholm |
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| Kpemou, A. M. |
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| Le Gall, Alice |
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| Matteo, Pietro Di |
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| Kojouri, Ali Shivaie |
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Fan, Jialiang
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2025Combined computational-experimental investigation of residual stresses and pre-cracking in mode I behaviour of thick adhesively bonded GFRP composite jointscitations
- 2024An experimental and analytical study of mode I fracture and crack kinking in thick adhesive jointscitations
- 2024Healable adhesive paste development for thick adhesive joints
- 2024Investigating the mode-I failure behaviour of thick adhesive joints using a coupled computational/experimental approach
- 2024Void content and displacement ratio effects on fatigue crack growth in thick adhesively bonded composite joints under constant amplitude loadingcitations
- 2024Mode I fracture of thick adhesively bonded GFRP composite joints for wind turbine rotor bladescitations
- 2022INVESTIGATION OF BULK ADHESIVE MATERIAL AND THICK ADHESIVE JOINTS FOR WIND TURBINE APPLICATIONS
- 2022FRACTURE OF STRUCTURAL ADHESIVE UNDER PURE MODE III LOADING CONDITIONS: EXPERIMENTAL STUDY AND CHALLENGES
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document
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®-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.