Analysis of Neck Propagation in Polymeric Fibres Including the Effects of Viscoplasticity

[+] Author and Article Information
P. Tuḡcu, K. W. Neale

Université de Sherbrooke, Sherbrooke, Québec, Canada, J1K 2R1

J. Eng. Mater. Technol 110(4), 395-400 (Oct 01, 1988) (6 pages) doi:10.1115/1.3226068 History: Received November 15, 1987; Online October 22, 2009


The effects of material strain-rate dependence on necking and neck propagation in polymeric fibres are analyzed. Using a finite element scheme together with an elastic-viscoplastic constitutive model the entire load-deformation histories of round specimens are computed. Stress-strain distributions as well as the evolution of the specimen profiles are given at various stages of the axisymmetric stretching process. Comparisons with rate-independent response are also presented.

Copyright © 1988 by ASME
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