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1..thermal mechanism of cold drawing of polymers

2..cold drawing of polymers with rate and temperature dependent properties

3..temperature elevation in the zone of flow during cold drawing of polymers


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Cold drawing of polymers with rate and temperature dependent properties
P. Tuǧcua and K.W. Nealea

aFaculty of Applied Science, Universit¨¦ de Sherbrooke, Sherbrooke, Qu¨¦bec, Canada, J1K 2R1


Received 5 October 1989.  Available online 19 February 2003.

Abstract
Cold drawing of polymeric fibres exhibiting rate and temperature dependent material properties is studied for steady-state loading conditions. A rigid-plastic flow theory law which incorporates both material strain-rate sensitivity and thermal softening properties is employed. The destabilizing effect of deformation-induced heating is investigated where the thermomechanical response is assumed to take place under adiabatic conditions. The interplay between the stabilizing effect of material strain-rate sensitivity and destabilizing influence of deformation-induced heating is examined through various parametric studies.
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