Applicability of the modified XPP model to a description of flow behaviour of polymeric materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985874%3A_____%2F15%3A00446251" target="_blank" >RIV/67985874:_____/15:00446251 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4918874" target="_blank" >http://dx.doi.org/10.1063/1.4918874</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4918874" target="_blank" >10.1063/1.4918874</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Applicability of the modified XPP model to a description of flow behaviour of polymeric materials

Popis výsledku v původním jazyce

A 3N-parameter (3 parameters per mode) phenomenological modification of the XPP model for a description of the rheological properties of polymer melts is proposed. The predictive/fitting capabilities of the modified XPP model are compared with the Giesekus, XPP, and modified Leonov models using various polymeric materials in steady shear and uniaxial elongational flows. Its predictability of the rheological properties of the studied materials seems to be very good, including strain hardening in uniaxialelongational flow. Consequently, the GS derivative term was implemented into this modified XPP model. Then the model contains two linear parameters per mode (relaxation time and shear modulus) and two non-linear ones (the fitting parameter simultaneously controlling both strain hardening in elongation flow and shear thinning, and the slip parameter influencing almost solely shear thinning). The efficiency of this model is tested using LDPE and HDPE materials and compared with the modifi

Název v anglickém jazyce

Applicability of the modified XPP model to a description of flow behaviour of polymeric materials

Popis výsledku anglicky

A 3N-parameter (3 parameters per mode) phenomenological modification of the XPP model for a description of the rheological properties of polymer melts is proposed. The predictive/fitting capabilities of the modified XPP model are compared with the Giesekus, XPP, and modified Leonov models using various polymeric materials in steady shear and uniaxial elongational flows. Its predictability of the rheological properties of the studied materials seems to be very good, including strain hardening in uniaxialelongational flow. Consequently, the GS derivative term was implemented into this modified XPP model. Then the model contains two linear parameters per mode (relaxation time and shear modulus) and two non-linear ones (the fitting parameter simultaneously controlling both strain hardening in elongation flow and shear thinning, and the slip parameter influencing almost solely shear thinning). The efficiency of this model is tested using LDPE and HDPE materials and compared with the modifi

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Novel Trends in Rheology VI. AIP Conference Proceeding

ISBN

978-0-7354-1306-1

ISSN

—

e-ISSN

—

Počet stran výsledku

14

Strana od-do

020004-1-020004-14

Název nakladatele

AIP Publishing

Místo vydání

Melville

Místo konání akce

Zlín

Datum konání akce

28. 7. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000363246400004