About: Rheological Characterization and Constitutive Modeling of Two LDPE Melts

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Experimental data of two low-density polyethylene (LDPE) melts at 200°C for both shear flow (transient and steady shear viscosity as well as steady first normal stress coefficient) and elongational flow (transient and steady-state elongational viscosity) were analyzed by use of the Molecular Stress Function (MSF) model for broadly distributed, randomly branched molecular structures. For quantitative modeling of melt rheology in both types of flow and in a very wide range of deformation rates, only three nonlinear viscoelastic material parameters are needed: While the rotational parameter and the structural parameter are found to be equal for the two melts considered, the melts differ in the parameter describing maximum stretch of the polymer chains. Experimental data of two low-density polyethylene (LDPE) melts at 200°C for both shear flow (transient and steady shear viscosity as well as steady first normal stress coefficient) and elongational flow (transient and steady-state elongational viscosity) were analyzed by use of the Molecular Stress Function (MSF) model for broadly distributed, randomly branched molecular structures. For quantitative modeling of melt rheology in both types of flow and in a very wide range of deformation rates, only three nonlinear viscoelastic material parameters are needed: While the rotational parameter and the structural parameter are found to be equal for the two melts considered, the melts differ in the parameter describing maximum stretch of the polymer chains. (en)
Title	Rheological Characterization and Constitutive Modeling of Two LDPE Melts Rheological Characterization and Constitutive Modeling of Two LDPE Melts (en)
skos:prefLabel	Rheological Characterization and Constitutive Modeling of Two LDPE Melts Rheological Characterization and Constitutive Modeling of Two LDPE Melts (en)
skos:notation	RIV/67985874:_____/09:00327898!RIV10-AV0-67985874
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA200600703), Z(AV0Z20600510)
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Filip, Petr Pivokonský, Radek
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav pro hydrodynamiku AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	339345
http://linked.open...ai/riv/idVysledku	RIV/67985874:_____/09:00327898
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Rheology; MSF model; shear flow; elongational flow; train hardening; low-density polyethylene; polymer melts (en)
http://linked.open.../riv/klicoveSlovo	polymer melts low-density polyethylene shear flow Rheology MSF model elongational flow train hardening
http://linked.open...ontrolniKodProRIV	[094500F5A9C2]
http://linked.open...v/mistoKonaniAkce	Zlín
http://linked.open...i/riv/mistoVydani	Melville
http://linked.open...i/riv/nazevZdroje	Novel Trends in Rheology III
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Investigation of flow behaviour for a novel class of metallocene-based polymers
http://linked.open...UplatneniVysledku	2009
http://linked.open...iv/tvurceVysledku	Filip, Petr Zatloukal, M. Pivokonský, Radek Rolón-Garrido, V. H. Wagner, M. H.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open...ain/vavai/riv/wos	000270915900003
http://linked.open.../riv/zahajeniAkce	2009-07-28 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Dynamics of Fluid Systems and Transformation Processes in Hydrosphere
number of pages	12 (xsd:int)
http://purl.org/ne...btex#hasPublisher	American Institute of Physics
https://schema.org/isbn	978-0-7354-0689-6
is http://linked.open...avai/riv/vysledek of	Rheological Characterization and Constitutive Modeling of Two LDPE Melts Rheological Characterization and Constitutive Modeling of Two LDPE Melts Rheological Characterization and Constitutive Modeling of Two LDPE Melts Rheological Characterization and Constitutive Modeling of Two LDPE Melts

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