Abstract
A new numerical algorithm was developed for simulating one-dimensional, isothermal film casting of a viscoelastic polymer. The algorithm incorporates a material description of motion and allows the observation of draw resonance as a response problem. Simulation results for velocity, thickness, stress and stability for a low relaxation time agreed with the closed-form solutions for a viscous fluid. When the elastic contribution was increased the observed effects were as follows: the velocity decreased; the thickness gradient at the die increased; the thickness at the roll increased; the axial stress decreased; and the stability of the film decreased.
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