| 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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Verho, Tuukka
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2025A skeletonization-based approach for individual fiber separation in tomography images of biocomposites
- 2023Vibrations of Thin Bio Composite Plates
- 2022Biocomposite modeling by tomographic feature extraction and synthetic microstructure reconstructioncitations
- 2021Micromechanical performance of high-density polyethylene:experimental and modeling approaches for HDPE and its alumina-nanocompositescitations
- 2021Micromechanical performance of high-density polyethylenecitations
- 2019Matrix morphology and the particle dispersion in HDPE nanocomposites with enhanced wear resistancecitations
- 2018Crystal Growth in Polyethylene by Molecular Dynamics:The Crystal Edge and Lamellar Thicknesscitations
- 2018Crystal Growth in Polyethylene by Molecular Dynamicscitations
- 2018Imaging Inelastic Fracture Processes in Biomimetic Nanocomposites and Nacre by Laser Speckle for Better Toughnesscitations
- 2017Toughness and Flaw Tolerance by Biologically Inspired Approaches ; Sitkeitä rakennemateriaaleja luontoa jäljitellencitations
- 2017Micromechanical modeling of failure behavior of metallic materialscitations
- 2017Toughness and Fracture Properties in Nacre-Mimetic Clay/Polymer Nanocompositescitations
- 2015Fabrication of graphene-based 3D structures by stereolithographycitations
Places of action
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article
Micromechanical performance of high-density polyethylene
Abstract
The scratch resistance of polymers is important for numerous applications, as scratching can lead to degradation of surface properties and also represents an elementary process in abrasive wear. However, scratching of polymers is a complex process involving several modes of deformation, and theoretical understanding of it is incomplete. Numerical modeling is a potentially useful means towards a clearer picture of the scratching process, but the central role of tip-substrate contact and highly localized large deformations makes finite element analysis (FEA) challenging. Here, we take further the numerical approach by investigating a highly ductile semi-crystalline polymer by FEA and taking the inherent rate dependency of polymers into account by using an elasto-viscoplastic material model. Two γ-Al2O3 and f-Al2O3 HDPE nanocomposites, which have shown themselves to be suitable for tribological applications, are studied. We discussed the effect of nanofillers on the scratch behavior and highlight the significance of recovery properties, which still pose a challenge to numerical modeling.