| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Johansen, Nicolai Frost-Jensen
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Failsafe layer for wind turbine blades: Erosion protection of glass fiber composite through nanodiamond-treated flax composite top layercitations
- 2024Towards greener wind power: Nanodiamond-treated flax fiber composites outperform standard glass fiber composites in impact fatigue testscitations
- 2023High rate response of elastomeric coatings for wind turbine blade erosion protection evaluated through impact tests and numerical modelscitations
- 2023Fatigue S-N curve approach for impact loading of hyper- and visco-elastic leading edge protection systems of wind turbine blades
- 2022Technologies of Wind Turbine Blade Repair: Practical Comparisoncitations
- 2022Experimental study on the effect of drop size in rain erosion test and on lifetime prediction of wind turbine bladescitations
- 2022Experimental study on the effect of drop size in rain erosion test and on lifetime prediction of wind turbine bladescitations
- 2022Graphene/sol–gel modified polyurethane coating for wind turbine blade leading edge protection: Properties and performancecitations
- 2021Nanoengineered graphene-reinforced coating for leading edge protection of wind turbine bladescitations
- 2020Test Methods for Evaluating Rain Erosion Performance of Wind Turbine Blade Leading Edge Protection Systems
- 2018Impact fatigue damage of coated glass fibre reinforced polymer laminatecitations
- 2018Impact fatigue damage of coated glass fibre reinforced polymer laminatecitations
- 2018Development of Single Point Impact Fatigue Tester (SPIFT)
- 2018Development of Single Point Impact Fatigue Tester (SPIFT)
Places of action
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report
Development of Single Point Impact Fatigue Tester (SPIFT)
Abstract
Impact fatigue damage caused by rain droplets, also called rain erosion, is a severe problem for wind turbine blades. In the present report, an assessment of impact fatigue on a glass fibre reinforced polymer laminate with a gelcoat is<br/>presented and the damage mechanisms are investigated. A single point impact fatigue tester is developed to generate impact fatigue damage and SN data. Rubber balls are repeatedly impacted on a single location of the coated laminate. Each impact induces transient stresses in the coated laminate. After repeated impacts, these stresses generate cracks, leading to the removal of the coating and damage to the laminate. High-resolution digital imaging is used to determine the incubation time until the onset of coating damage. An acoustic emission sensor placed at the back of the laminate monitors changes in acoustic response as damage develops in the coated laminate. The subsurface cracks are studied and mapped by 3D X-ray computed tomography. A finite element method model of the impact shows the impact stresses in the coating and the laminate. The stresses seen in the model are compared to cracks found by 3D X-ray computed tomography. The damage is also evaluated by ultrasonic scanning.