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Long term prediction of nonlinear viscoelastic creep behaviourof elastomers: extended Schapery model

Published online by Cambridge University Press:  14 March 2009

Hatem Gacem ,
Yvon Chevalier ,
Jean-Luc Dion ,
Mohamed Soula  and
Brahim Rezgui
Hatem Gacem
Affiliation:
Laboratoire d'ingénierie des systèmes mécaniques et des matériaux (LISMMA), Institut Supérieur de Mécanique de Paris (SUPMECA), 3 rue Fernand Hainaut, 93407 Saint-Ouen Cedex, Paris, France Unité de recherche génie des matériaux (URGM), École nationale d'ingénieurs de Tunis (ENIT), BP 37, Le Belvédère, Tunis, Tunisie
Yvon Chevalier
Affiliation:
Laboratoire d'ingénierie des systèmes mécaniques et des matériaux (LISMMA), Institut Supérieur de Mécanique de Paris (SUPMECA), 3 rue Fernand Hainaut, 93407 Saint-Ouen Cedex, Paris, France
Jean-Luc Dion
Affiliation:
Laboratoire d'ingénierie des systèmes mécaniques et des matériaux (LISMMA), Institut Supérieur de Mécanique de Paris (SUPMECA), 3 rue Fernand Hainaut, 93407 Saint-Ouen Cedex, Paris, France
Mohamed Soula
Affiliation:
Unité de recherche génie des matériaux (URGM), École nationale d'ingénieurs de Tunis (ENIT), BP 37, Le Belvédère, Tunis, Tunisie
Brahim Rezgui
Affiliation:
Unité de recherche génie des matériaux (URGM), École nationale d'ingénieurs de Tunis (ENIT), BP 37, Le Belvédère, Tunis, Tunisie
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Abstract

Herein we develop a creep test method for characterizing nonlinear viscoelastic behaviour of an elastomer through weak deformation. This approach is based on an expanded Schapery model. Short term creep tests at various stress levels were performed upon specimens composed of a synthetic elastomer. A method to predict the long term creep behaviour using short term creep tests is presented. Experimental results and theoretical predictions are compared.

Keywords

Creep testsnonlinear visco-elasticitySchapery modeltime-stress equivalenceEssais de fluagevisco-élastcité non-linéairemodèle de Schaperyéquivalence contrainte–temps
Type
Research Article
Information
Mechanics & Industry , Volume 9 , Issue 5 , September 2008 , pp. 407 - 416
Copyright
© AFM, EDP Sciences, 2009

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