Micro-sphere model for strain-induced crystallization in rubber

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Natural rubber is known to crystallize under strain so that samples subjected to loadingunloading cycles exhibit hysteresis. In the present paper, an anisotropic constitutive model for straininduced crystallization rubber is proposed based on review of the numerous experiments conducted on this material. Detailed information on the semi-crystalline system is therefore available, particularly simultaneous measurements of stress and crystallinity versus elongation. Then, introducing an internal variable associated to crystallinity, a solution to the evolution of this variable can be found, that is thermodynamically consistent. This 1D model is then plugged into a micro-sphere approach. In this approach, each direction is free to have its own history, which allows us to obtain an evolving anisotropy. This model is assessed by uniaxial tensile tests under cyclic loadings and anisotropy measurements.

Original languageEnglish
Title of host publicationConstitutive Models for Rubber VIII - Proceedings of the 8th European Conference on Constitutive Models for Rubbers, ECCMR 2013
PublisherTaylor and Francis - Balkema
Pages467-472
Number of pages6
ISBN (Print)9781138000728
DOIs
Publication statusPublished - 1 Jan 2013
Event8th European Conference on Constitutive Models for Rubbers, ECCMR 2013 - San Sebastian, Spain
Duration: 25 Jun 201328 Jun 2013

Publication series

NameConstitutive Models for Rubber VIII - Proceedings of the 8th European Conference on Constitutive Models for Rubbers, ECCMR 2013

Conference

Conference8th European Conference on Constitutive Models for Rubbers, ECCMR 2013
Country/TerritorySpain
CitySan Sebastian
Period25/06/1328/06/13

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