Teoretická a experimentální analýza neobvyklých jevů, které se objevují při koextruzi

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F05%3A63503814" target="_blank" >RIV/70883521:28110/05:63503814 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Theoretical and experimental investigation of unusual flow phenomena occurring during viscoelastic coextrusion flows

Popis výsledku v původním jazyce

Fully viscoelastic FEM together with flow visualization technique are employed to quantify the effect of the die design on the wave type of interfacial instabilities in coextrusion. It has been shown experimentally that the minor channel geometry has a strong impact on the wave type of interfacial instabilities and the results can be correlated through novel criteria called as Total Stress Difference (TSN), which takes in to account the bulk change of the total stress in normal as well as tangential direction with respect to the interface. It has also been shown that specific type of high stress area occurs around the interface at the end of the converging section. This total stress has been found to be non-monotonic along the interface and related forthe onset of zig-zag type of interfacial instabilities when the total stress achieved 200 kPa.

Název v anglickém jazyce

Theoretical and experimental investigation of unusual flow phenomena occurring during viscoelastic coextrusion flows

Popis výsledku anglicky

Fully viscoelastic FEM together with flow visualization technique are employed to quantify the effect of the die design on the wave type of interfacial instabilities in coextrusion. It has been shown experimentally that the minor channel geometry has a strong impact on the wave type of interfacial instabilities and the results can be correlated through novel criteria called as Total Stress Difference (TSN), which takes in to account the bulk change of the total stress in normal as well as tangential direction with respect to the interface. It has also been shown that specific type of high stress area occurs around the interface at the end of the converging section. This total stress has been found to be non-monotonic along the interface and related forthe onset of zig-zag type of interfacial instabilities when the total stress achieved 200 kPa.

Druh

C - Kapitola v odborné knize

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Polymer Process Engineering 05: Enhanced Polymer Processing

ISBN

1851432264

Počet stran výsledku

23

Strana od-do

347-369

Počet stran knihy

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Název nakladatele

University of Bradford

Místo vydání

Bradford

Kód UT WoS kapitoly

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