Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites
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 theoreti...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941820321656 |
| _version_ | 1819040410081689600 |
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| author | Viacheslav Balobanov Tuukka Verho Vuokko Heino Helena Ronkainen Jani Pelto |
| author_facet | Viacheslav Balobanov Tuukka Verho Vuokko Heino Helena Ronkainen Jani Pelto |
| author_sort | Viacheslav Balobanov |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-21T09:08:39Z |
| format | Article |
| id | doaj.art-ae611392d10648ef80bdd52d01b9c6d9 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-21T09:08:39Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-ae611392d10648ef80bdd52d01b9c6d92022-12-21T19:09:16ZengElsevierPolymer Testing0142-94182021-01-0193106936Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocompositesViacheslav Balobanov0Tuukka Verho1Vuokko Heino2Helena Ronkainen3Jani Pelto4Corresponding author.; VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, 02044, VTT, FinlandVTT Technical Research Centre of Finland Ltd, P.O. Box 1000, 02044, VTT, FinlandVTT Technical Research Centre of Finland Ltd, P.O. Box 1000, 02044, VTT, FinlandVTT Technical Research Centre of Finland Ltd, P.O. Box 1000, 02044, VTT, FinlandVTT Technical Research Centre of Finland Ltd, P.O. Box 1000, 02044, VTT, FinlandThe 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.http://www.sciencedirect.com/science/article/pii/S0142941820321656PolyethyleneNanocompositeScratch testVisco-elasto-plasticityFinite element analysis |
| spellingShingle | Viacheslav Balobanov Tuukka Verho Vuokko Heino Helena Ronkainen Jani Pelto Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites Polymer Testing Polyethylene Nanocomposite Scratch test Visco-elasto-plasticity Finite element analysis |
| title | Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites |
| title_full | Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites |
| title_fullStr | Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites |
| title_full_unstemmed | Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites |
| title_short | Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites |
| title_sort | micromechanical performance of high density polyethylene experimental and modeling approaches for hdpe and its alumina nanocomposites |
| topic | Polyethylene Nanocomposite Scratch test Visco-elasto-plasticity Finite element analysis |
| url | http://www.sciencedirect.com/science/article/pii/S0142941820321656 |
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