par Crowet, Colette 
;Bauwens, Jean Claude
Référence Journal of Materials Science, 10, 10, page (1779-1787)
Publication Publié, 1975-10
;Bauwens, Jean Claude Référence Journal of Materials Science, 10, 10, page (1779-1787)
Publication Publié, 1975-10
Article révisé par les pairs
| Résumé : | A model is presented to describe the creep behaviour of glassy polymers below the glass transition temperature. It consists of a Hookean spring in series with a non-Newtonian dashpot having an entropy spring in parallel. The shape of the response of this spring is deduced from a master curve, giving the extension as a function of logarithm of time, built from creep data, reported here and obtained on polycarbonate over a wide range of times and temperatures. The model takes into account a number of aspects of creep behaviour and predicts a threshold stress beneath which delayed yielding no longer occurs. Torsional creep data, obtained on Polyvinylchloride by Mallon and Benham are found to be in excellent agreement with the proposed model. © 1975 Chapman and Hall Ltd. |
