3D features in the calendering of thermoplastics

dc.contributor.author	Πολυχρονόπουλος, Νικόλας Δ.	el
dc.contributor.author	Σαρρής, Ιωάννης Ε.	el
dc.contributor.author	Παπαθανασίου, Αθανάσιος Δ.	el
dc.date.accessioned	2015-06-07T19:02:46Z
dc.date.available	2015-06-07T19:02:46Z
dc.date.issued	2015-06-07
dc.identifier.uri	http://hdl.handle.net/11400/15530
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.scopus.com/record/display.url?origin=recordpage&eid=2-s2.0-84902302920&citeCnt=0&noHighlight=false&sort=plf-f&src=s&sid=62A9054A815E25F2D3896574D4CE2724.fM4vPBipdL1BpirDq5Cw%3a5800&sot=autdocs&sdt=autdocs&sl=18&s=AU-ID%2835848021500%29&relpos=4	en
dc.subject	Καλανδάρισμα
dc.subject	Κρυσταλλογραφία
dc.subject	Κύλινδροι
dc.subject	Πρότυπα ροής
dc.subject	Θερμοπλαστικά
dc.subject	Plastics--Calendering
dc.subject	Crystallography
dc.subject	Cylinders
dc.subject	Flow patterns
dc.subject	Thermoplastics
dc.title	3D features in the calendering of thermoplastics	en
heal.type	journalArticle
heal.secondaryTitle	a computational investigation	en
heal.classification	Επιστήμη
heal.classification	Μηχανική
heal.classification	Science
heal.classification	Engineering
heal.classificationURI	N/A-Επιστήμη
heal.classificationURI	N/A-Μηχανική
heal.classificationURI	http://skos.um.es/unescothes/C03532
heal.classificationURI	http://skos.um.es/unescothes/C01363
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85103160
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85134811
heal.identifier.secondary	DOI: 10.1002/pen.23719
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Ενεργειακής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2014-07
heal.bibliographicCitation	Polychronopoulos, N.D., Sarris, I.E. and Papathanasiou, T.D. (2014) 3D features in the calendering of thermoplastics: A computational investigation. Polymer Engineering and Science. [Online] 54 (7), pp.1712-1722. Available from: http://www.scopus.com [Accessed 07/06/2015]	en
heal.abstract	We present results of a fully three-dimensional computational study of the calendering process of thermoplastics using the fluid dynamics software OpenFOAM. Our aim is to elucidate unique 3D features of the process, such as spreading and melt flow. We assume that the material is fed in the form of a sheet of finite thickness and detaches from the cylinders at a prescribed thickness. The rotational motion of the cylinders, the consequent pressure build-up (both in the machine and the transverse directions) and the presence of the free surfaces (sides) of the calendered sheet - both deformable and at ambient pressure - forces the thermoplastic melt to spread in the transverse direction. A decoupled iterative procedure is used to predict the shape of the spreading side surfaces under different conditions. A spiraling transverse flow pattern in the melt feeding section is shown to exist, which determines the actual flow path of the calendered material in a nonintuitive way. We show that insofar as the material redistribution (from the fed sheet to the produced film) during the process is concerned, the results of the present analysis predict a 3D spiral flow pattern and a redistribution of the fed material from the central region of the fed sheet to the sides of the calendered product. POLYM. ENG. SCI., 54:1712-1722, 2014.	en
heal.publisher	Society of Plastics Engineers	en
heal.journalName	Polymer Engineering and Science	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true