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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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Lund, Erik
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2023Multi-material and thickness optimization of laminated composite structures subject to high-cycle fatiguecitations
- 2023A matter of coursecitations
- 2023A matter of course:Generating optimal manufacturing instructions from a structural layup plan of a wind turbine bladecitations
- 2022Discrete Material and Thickness Optimization of laminated composites using aggregated high-cycle fatigue constraints
- 2021A simple MATLAB draping code for fiber-reinforced composites with application to optimization of manufacturing process parameterscitations
- 2019Discrete Material and Thickness Optimization of sandwich structurescitations
- 2017A benchmark study of simulation methods for high-cycle fatigue-driven delamination based on cohesive zone modelscitations
- 2016Post-buckling optimization of composite structures using Koiter's methodcitations
- 2015Simulation Methods for High-Cycle Fatigue-Driven Delamination using Cohesive Zone Models - Fundamental Behavior and Benchmark Studies
- 2014Development of a High-fidelity Experimental Substructure Test Rig for Grid-scored Sandwich Panels in Wind Turbine Bladescitations
- 2014High-fidelity multiaxial testing of composite substructures
- 2013Interlaminar/interfiber Failure of Unidirectional GFRP used for Wind Turbine Blades
- 2013Asymptotic Sampling for reliability analysis of adhesive bonded stepped lap composite jointscitations
- 2012Fatigue Failure of Sandwich Beams with Wrinkle Defects Used for Wind Turbine Blades
- 2012Investigation of failure mechanisms in GFRP sandwich structures with face sheet wrinkle defects used for wind turbine bladescitations
- 2012Interlaminar/interfiber failure of unidirectional GFRP used for wind turbine blades
- 2012Thickness optimization of laminated composites using the discrete material optimization method
- 2012Assessment of Interlaminar/Interfiber Failure of UD GRFP for Wind Turbine Blades
- 2012Reliability analysis of adhesive bonded scarf jointscitations
- 2012Reliability Analysis of Adhesive Bonded Scarf Jointscitations
- 2011Optimization strategies for discrete multi-material stiffness optimizationcitations
- 2004Large Scale FEM of the effective elastic properties of particle reinforced composites
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article
Investigation of failure mechanisms in GFRP sandwich structures with face sheet wrinkle defects used for wind turbine blades
Abstract
Wrinkle defects can be formed during the production of wind turbine blades consisting of composite monolithic and sandwich laminates. Earlier studies have shown that the in-plane compressive strength of a sandwich panel with wrinkle defects may decrease dramatically. This study focuses on the failure modes of sandwich specimens consisting of thick GFRP face sheets with a wrinkle defect and a balsa wood core subjected to in-plane compression loading. Three distinct modes of failure were found, and the strain distributions leading up to these failures were established by use of digital image correlation (DIC). Finite element analyses were subsequently conducted to model the response of the test specimens prior to failure, and generally a very good agreement was found with the DIC measurements, although slight differences between the predicted and measured strain fields were observed in the local strain values around the wrinkle defect. The Northwestern University (NU) failure criterion was applied to predict failure initiation, and a good correlation with the experimental observations was achieved. © 2011 Elsevier Ltd.