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Instabilities and failure in elongational flow and melt spinning of fibers
Author(s) -
White James L.,
Ide Yoshiaki
Publication year - 1978
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1978.070221102
Subject(s) - spinning , materials science , melt spinning , viscoelasticity , composite material , hardening (computing) , instability , constitutive equation , flow (mathematics) , deformation (meteorology) , mechanics , thermodynamics , physics , finite element method , layer (electronics)
A theoretical and experimental study of instability and failure behavior during melt spinning is presented. From an analysis of system dynamics, draw resonance is shown to be a continuous processing analogue of ductile failure. Using viscoelastic fluid mechanics and the White‐Metzner constitutive model, it is shown that melts which exhibit ductile failure in elongational flow tend to show draw resonance in melt spinning. Deformation hardening melts exhibit cohesive fracture in elongational flow and melt‐spinning processes.