Technical Paper Archive

This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.

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Can a quasilinear viscoelastic model describe the nonlinear mechanical behavior of unfilled elastomers?

2011 c5

Event: 180th Technical Meeting
Location: Cleveland, OH
Date: October 11, 2011
Author: Rasika Prabhu*, Aparajita Bhattacharya, Grigori A Medvedev and James M Caruthers,
Paper Number: C5

Price: $20.00

  • Student Colloquium:
    An extensive set of linear and nonlinear mechanical experiments, including nonlinear stress- strain behavior, stress relaxation, and creeplrecovery, have been carried out on a lightly crosslinked styrene-butadiene rubber (23.5 wt% styrene) for a wide range of temperatures, extension rates and extension ratios. The linear viscoelastic response determined via tensile creep and dynamic shear experiments was analyzed via time temperature superposition to obtain the relaxation spectrum. The extensive nonlinear experimental data was used to critically evaluate a class of constitutive models consisting of an additive combination of a hyperelastic term and a single integral quasilinear viscoelastic term. For moderate deformations the model quantitatively described all the features of the observed mechanical behavior. The dependence of the model parameters on temperature and crosslink density was determined.
    Student Colloquium

    Papers from 180th Technical Meeting

    Items from 180th Technical Meeting