A constitutive model for stress-strain response and Mullins effect in filled elastomers

A. K. Mossi Idrissa, S. Ahzi, S. Patlazhan, Y. Rémond, D. Ruch

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In this work we propose a new constitutive theory to estimate the stress-strain response and the softening induced by the Mullins effect during the stretching of filled elastomers. In this study, we used the Mullins and Tobin concept where the filled elastomers are treated as composites with hard-domains and soft-domains and the softening is due to the hard domain transformation into soft domain during stretching. Gent strain energy is assumed to represent the behavior of the unfilled elastomers. This strain energy representation is then reformulated in order to consider fillers effect in the case of filled elastomers. The proposed approach takes into account the effect of the type of carbon-black filler and of its volume fraction on the mechanical response and microstructure evolution during stretching. The predicted results are compared to Mullins and Tobin experimental data, and good agreements are obtained.

Original languageEnglish
Pages (from-to)4368-4375
Number of pages8
JournalJournal of Applied Polymer Science
Volume125
Issue number6
DOIs
Publication statusPublished - 15 Sep 2012

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Keywords

  • Gent model
  • Mullins'
  • carbon black fillers
  • effect
  • filled elastomers
  • hard-to-soft transformation
  • strain softening

ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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