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Teoretická a experimentální výzkum neobvyklých projevů polymerních tavenin při souběžném vytlačování

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dc.title Teoretická a experimentální výzkum neobvyklých projevů polymerních tavenin při souběžném vytlačování cs
dc.title Theoretical and experimental investigation of interfacial instability phenomena occurring during viscoelastic coextrusion en
dc.contributor.author Zatloukal, Martin
dc.contributor.author Kopytko, Walter
dc.contributor.author Sáha, Petr
dc.contributor.author Martyn, Mike T.
dc.contributor.author Coates, Phil D.
dc.relation.ispartof Plastics, Rubber and Composites: Macromolecular Engineering
dc.identifier.issn 1465-8011 OCLC, Ulrich, Sherpa/RoMEO, JCR
dc.date.issued 2005-11
utb.relation.volume 34
utb.relation.issue 9
dc.citation.spage 403
dc.citation.epage 409
dc.event.title Polymer Process Engineering International Conference
dc.event.location Bradford
utb.event.state-en United Kingdom
utb.event.state-cs Spojené království
dc.event.sdate 2005-07
dc.type article
dc.type conferenceObject
dc.language.iso en
dc.publisher Maney Publishing en
dc.identifier.doi 10.1179/174328905X71995
dc.relation.uri http://www.tandfonline.com/doi/abs/10.1179/174328905X71995
dc.subject souběžné vytlačování cs
dc.subject meziplošné nestability cs
dc.subject viskoelasticita cs
dc.subject coextrusion en
dc.subject interfacial instabilities en
dc.subject viscoelasticity en
dc.subject modified Leonov model en
dc.description.abstract Teoreticky a experimentálně byl analyzován napěťový stav při soutoku taveninových proudů. Bylo odhaleno, že pokud velikost tenzoru napětí přesáhne na rozhraní hodnotu 200 kPa, dojde ke vzniku meziplošných nestabilitit typu zig-zag. cs
dc.description.abstract The fully viscoelastic finite element method (FEM) together with the flow visualisation technique were employed to quantify the effect of die design on wave type interfacial instabilities in coextrusion. It has been shown experimentally that minor channel geometry has a strong impact on wave type interfacial instabilities and the results can be correlated through novel criteria called Total Stress Difference (TSN) which takes into account the bulk change in total stress in the normal as well as the tangential direction with respect to the interface. It has also been shown that a 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 is related to the onset of zigzag type interfacial instabilities when the total stress achieved 200 kPa. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1001969
utb.identifier.rivid RIV/70883521:28110/05:63503809
utb.identifier.obdid 14053095
utb.identifier.obdid 43865497
utb.identifier.scopus 2-s2.0-29344435957
utb.identifier.wok 000234390000005
utb.identifier.coden PRUCF
utb.source d-wok
dc.date.accessioned 2011-08-09T07:34:19Z
dc.date.available 2011-08-09T07:34:19Z
utb.contributor.internalauthor Zatloukal, Martin
utb.contributor.internalauthor Kopytko, Walter
utb.contributor.internalauthor Sáha, Petr
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