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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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Karakoç, Alp
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Design, Fabrication, and Characterization of 3D-Printed Multiphase Scaffolds Based on Triply Periodic Minimal Surfacescitations
- 2023Effects of leaflet curvature and thickness on the crimping stresses in transcatheter heart valvecitations
- 2023Low-cost thin film patch antennas and antenna arrays with various background wall materials for indoor wireless communicationscitations
- 2022Predicting the upper-bound of interlaminar impact damage in structural composites through a combined nanoindentation and computational mechanics techniquecitations
- 2022Simplified indentation mechanics to connect nanoindentation and low-energy impact of structural composites and polymers
- 2021Effect of single-fiber properties and fiber volume fraction on the mechanical properties of Ioncell fiber compositescitations
- 2021Exploring the possibilities of FDM filaments comprising natural fiber-reinforced biocomposites for additive manufacturingcitations
- 2021Mild alkaline separation of fiber bundles from eucalyptus bark and their composites with cellulose acetate butyratecitations
- 2020Data-Driven Computational Homogenization Method Based on Euclidean Bipartite Matchingcitations
- 2020Mechanical and thermal behavior of natural fiber-polymer composites without compatibilizerscitations
- 2020A predictive failure framework for brittle porous materials via machine learning and geometric matching methodscitations
- 2020Comparative screening of the structural and thermomechanical properties of FDM filaments comprising thermoplastics loaded with cellulose, carbon and glass fiberscitations
- 2020Comparative screening of the structural and thermomechanical properties of FDM filaments comprising thermoplastics loaded with cellulose, carbon and glass fiberscitations
- 2019Machine Learning assisted design of tailor-made nanocellulose filmscitations
- 2018Stochastic fracture of additively manufactured porous compositescitations
- 2016Shape and cell wall slenderness effects on the stiffness of wood cell aggregates in the transverse planecitations
- 2016Modeling of wood-like cellular materials with a geometrical data extraction algorithmcitations
- 2013Effective stiffness and strength properties of cellular materials in the transverse planecitations
Places of action
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article
Predicting the upper-bound of interlaminar impact damage in structural composites through a combined nanoindentation and computational mechanics technique
Abstract
<p>Low-energy/speed impact damage of composite laminates is still challenging to simulate due to difficulties in measuring some key material properties. The present study develops an integrated numerical and experimental method for predicting interlaminar impact damage. A nanoindentation technique for measuring the stiffness properties of composites at a small length scale (nanometers) is leveraged to determine damage to composite laminates due to fast (microsecond) projectile impact. Specifically, nanoindentation is employed to measure the contact stiffness of an indenter and aerospace carbon/epoxy IM7/977-3 laminates with four different stacking sequences. Then, through a technique that combines nanoindentation and computational mechanics, an equivalent impact force approach is proposed to predict the upper-bound of interlaminar impact damage at impact energy levels of 5 and 10 Joules. Drop-weight impact experiments are conducted to validate the prediction results. In practical applications, estimating the upper-bound of damage is important for conservative and efficient damage tolerance designs, especially for thick composite laminates.</p>