| 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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Wiener, Johannes
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Investigation of background noise affecting AE data acquisition during tensile loading of FRPs
- 2023Determination of creep crack growth kinetics of ABS via the C* approach at different temperaturescitations
- 2023Concepts towards bio-inspired multilayered polymer-compositescitations
- 2023Comparing crack density and dissipated energy as measures for off-axis damage in composite laminatescitations
- 2022Mechanical properties of additively manufactured polymeric implant materials in dependence of microstructure, temperature and strain-rate
- 2022Influence of layer architecture on fracture toughness and specimen stiffness in polymer multilayer compositescitations
- 2021Optimization of Mechanical Properties and Damage Tolerance in Polymer-Mineral Multilayer Compositescitations
- 2020Using Compliant Interlayers as Crack Arresters in 3-D-Printed Polymeric Structurescitations
- 2020Exploiting the Carbon and Oxa Michael Addition Reaction for the Synthesis of Yne Monomerscitations
- 2019Application of the material inhomogeneity effect for the improvement of fracture toughness of a brittle polymercitations
- 2019Erhöhung der Bruchzähigkeit durch Multischichtaufbau
- 2019Bioinspired toughness improvement through soft interlayers in mineral reinforced polypropylenecitations
Places of action
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article
Influence of layer architecture on fracture toughness and specimen stiffness in polymer multilayer composites
Abstract
The objective of this contribution was to increase the fracture toughness of talcum reinforced polypropylene (PP) while preserving specimen stiffness. This was accomplished by introducing soft interlayers (ILs) made of standard PP (PP-St) or very compliant PP (PP-Soft) and utilizing the so-called material inhomogeneity effect. Architectures with one or two ILs of either 0.3 or 0.9 mm thickness were tested in single edge notched bending experiments. Layers of PP-Soft always arrested growing cracks due to their low Young’s modulus, E, and yield stress, , which is called an (-inhomogeneity. However, the increase in fracture toughness came at the cost of specimen stiffness. For ILs made of PP-St, E was still lower compared to the matrix material, but was similar (pure E-inhomogeneity). Specimen stiffness remained high for these composites, but crack arrest could not be achieved in most cases, which could be explained by plastic deformation of the soft layers. Plastic deformation could be contained within the ILs in one of the architectures, where two large ILs were used. Crack arrest could be achieved in this adapted IL design, leading to excellent fracture toughness in combination with high stiffness.