Asymptotically Justified Boundary Conditions for a Viscoelastic Two‐Phase Fiber Model

In this work we present asymptotically justified boundary/interface conditions for a viscoelastic two-phase fiber model with flow-enhanced crystallization. While the equations are well-established in literature, choice of boundary is still under discussion as they might cause artificial layering at crystallization onset. We show that our avoid such layering, yielding regularly perturbed value problem either continuous or discontiunous interface.