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A Mullins softening criterion for general loading conditions

Article dans une revue avec comité de lecture
Author
MERCKEL, Yannick
120930 Centrale Lille
BRIEU, Mathias
120930 Centrale Lille
DIANI, Julie
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
CAILLARD, Julien
172180 Centre de Technologie de Ladoux

URI
http://hdl.handle.net/10985/17617
DOI
10.1016/j.jmps.2012.04.001
Date
2012
Journal
Journal of the Mechanics and Physics of Solids

Abstract

Samples of carbon-black filled styrene butadiene rubbers (SBRs) were submitted to successive nonproportional loadings in order to define a general criterion for the Mullins softening. For this purpose, each sample was initially submitted to uniaxial or biaxial preloadings followed by a cyclic uniaxial tension test. An original experimental analysis aimed at defining the activation threshold for the Mullins softening during cyclic uniaxial loadings. The experimental data provide substantial evidences establishing the surface of the maximum directional stretch undergone by the material as a relevant Mullins softening criterion. The latter was used to successfully predict the Mullins softening surfaces for additional loading cases.

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