Postponing Polymer Processing Instabilities

Research output: Chapter in Book/Report/Conference proceedingConference paper


In this report a short overview is given of the instabilities that may occur during extrusion of a polymer. For the so—called spurt phenomenon a model is discussed that makes use of the JSO constitutive equation. It is shown that this model lead to a differential-algebraic-integral equation. The structure of the the equations is sketched in terms of time scales. For the stability analysis a new method is proposed that is based on discretization of the integral equation. This approximation reduces the model to a set of (singularly perturbed) ODEs, which can be analysed with standard methods.
Original languageEnglish
Title of host publicationProgress in Industrial Mathematics
EditorsA.M. Capasso Canile, A. Greco
PublisherSpringer Verlag
ISBN (Print)9783540425823
Publication statusPublished - 2002
EventECMI 2000 -
Duration: 15 Jun 200216 Jun 2002


ConferenceECMI 2000

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