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...

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Autores principales:	Viacheslav Balobanov, Tuukka Verho, Vuokko Heino, Helena Ronkainen, Jani Pelto
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Polyethylene Nanocomposite Scratch test Visco-elasto-plasticity Finite element analysis Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/ae611392d10648ef80bdd52d01b9c6d9
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spelling	oai:doaj.org-article:ae611392d10648ef80bdd52d01b9c6d92021-11-24T04:24:36ZMicromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites0142-941810.1016/j.polymertesting.2020.106936https://doaj.org/article/ae611392d10648ef80bdd52d01b9c6d92021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941820321656https://doaj.org/toc/0142-9418The 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.Viacheslav BalobanovTuukka VerhoVuokko HeinoHelena RonkainenJani PeltoElsevierarticlePolyethyleneNanocompositeScratch testVisco-elasto-plasticityFinite element analysisPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 93, Iss , Pp 106936- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Polyethylene Nanocomposite Scratch test Visco-elasto-plasticity Finite element analysis Polymers and polymer manufacture TP1080-1185
spellingShingle	Polyethylene Nanocomposite Scratch test Visco-elasto-plasticity Finite element analysis Polymers and polymer manufacture TP1080-1185 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
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.
format	article
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
title	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_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_sort	micromechanical performance of high-density polyethylene: experimental and modeling approaches for hdpe and its alumina-nanocomposites
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ae611392d10648ef80bdd52d01b9c6d9
work_keys_str_mv	AT viacheslavbalobanov micromechanicalperformanceofhighdensitypolyethyleneexperimentalandmodelingapproachesforhdpeanditsaluminananocomposites AT tuukkaverho micromechanicalperformanceofhighdensitypolyethyleneexperimentalandmodelingapproachesforhdpeanditsaluminananocomposites AT vuokkoheino micromechanicalperformanceofhighdensitypolyethyleneexperimentalandmodelingapproachesforhdpeanditsaluminananocomposites AT helenaronkainen micromechanicalperformanceofhighdensitypolyethyleneexperimentalandmodelingapproachesforhdpeanditsaluminananocomposites AT janipelto micromechanicalperformanceofhighdensitypolyethyleneexperimentalandmodelingapproachesforhdpeanditsaluminananocomposites
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Micromechanical performance of high-density polyethylene: Experimental and modeling approaches for HDPE and its alumina-nanocomposites

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