Predicting the Onset of Interfacial Instabilities in Coextrusion, 1999 Polymers, Laminations & Coatings Conference Proceedings
John Perdikoulias, Compuplast International Inc., Ontario, Canada
Martin Zatloukal., University of Brno, Faculty of Technology, Zlin, Czech Republic
Costas. Tzoganakis, University of Waterloo, Ontario, Canada
This paper will present a method for predicting the occurrence of an interfacial instability in a coextrusion flow field. The method uses a fairly standard FEM analysis along with a subsequent specialized visco- elastic stress calculation. The capabilities of the model are evaluated with experimental data.