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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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Toftegaard, Helmuth Langmaack
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023J integral strain-curvature approach for multilayer fracture specimens with unknown thickness and stiffness of layerscitations
- 2018Preface for the 39th Risø Symposium Proceedings, IOP publication
- 2018Proceedings of the 39th Risø International Symposium
- 2017Fatigue crack growth in mode II of adhesively joined composites
- 2016Delamination initiated by a defect
- 2014Experimental and theoretical assessment of flexural properties of hybrid natural fibre compositescitations
- 2014Effects of equal channel angular extrusion on microstructure, strength and ballistic performance of AA5754 plates
- 2014Environmental effect on the mechanical properties of commingled-yarn-based carbon fibre/polyamide 6 compositescitations
- 2014Environmental effect on the mechanical properties of commingled-yarn-based carbon fibre/polyamide 6 compositescitations
- 2009Effects of Heat-treatments on the Mechanical Strength of Coated YSZ: An Experimental Assessmentcitations
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conferencepaper
Fatigue crack growth in mode II of adhesively joined composites
Abstract
The structure of a wind turbine is exposed to a complex multi-axial cyclic loading. The blades are commonly manufactured of adhesively joined composites. Adhesive joints are usually strongest if loaded in shear and accordingly fatigue properties in shear are important. In the current paper, experiments are performed to derive material data for a crack propagation in shear i.e. in mode II. The shear loading of the crack is achieved by use of double cantilever beam specimens loaded with uneven bending moments. The experiments are performed under a constant cyclic displacement. An initial mode I loading is used to make the crack start in the adhesive. The crack length is measured using a load synchronized camera. Due to the shear loading the crack deviates from the adhesive layer into the laminate. A stable crack propagation is detected in the laminate. No influence have been detected due to an increasing crack length. It is also observed that the crack is trapped in the laminate; if the loading is changed to mode I the crack continues to propagate in the laminate.