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Journal of Materials Science

, Volume 54, Issue 1, pp 862–874 | Cite as

Thermomechanical characterization of leathers under tension using infrared thermography

  • Guillaume Corvec
  • Noëlie Di Cesare
  • Xavier Balandraud
  • Jean-Benoit Le Cam
  • Julien Gauffreteau
Polymers
  • 160 Downloads

Abstract

Leather materials are subjected to various deformation states during their elaboration and their use as a final product. Although the mechanical response of leathers under tension has been studied in the literature for decades, scarce information is available on the nature of their elasticity and more generally on their thermomechanical behavior. In the present study, four leathers were tested under uniaxial loading conditions while temperature changes were measured at the specimen surface using infrared thermography. Two types of tests were performed at constant ambient temperature: monotonous displacement-controlled tests until failure and cyclic load–unload tests with increasing amplitudes. The heat sources at the origin of the temperature changes were also determined by using a version of the heat diffusion equation applicable to homogeneous tests. Results enabled us to discuss the nature of thermoelastic couplings in leathers. Intrinsic dissipation caused by mechanical irreversibility was also detected and quantified. Distinct responses are evidenced depending on the type of leather tested.

Notes

Acknowledgements

The authors thank the National Center for Scientific Research (MRCT-CNRS and MI-CNRS), Rennes Metropole and Region Bretagne for financially supporting this work. Authors also thank Dr Mathieu Miroir, Dr Eric Robin, Mr Vincent Burgaud and Mr Mickaël Lefur for having designed the biaxial tensile machine, and Dr Pierre-Olivier Bussiere for the chemical analyses. The authors also thank the Campus des Métiers et des Qualifications “Design, Matériaux & Innovation” for supporting this work.

Compliance with ethical standards

Conflict of interests

The authors declared no potential conflicts of interest with respect to the research, authorship and/or publication of this article.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.CNRS, IPR (Institute de Physique de Rennes), UMR 6251Univ RennesRennesFrance
  2. 2.Joint Research Laboratory, Cooper Standard - Institut de Physique, UMR 6251LC-DRIMERennes CedexFrance
  3. 3.IRDL, UMR CNRS 6027Université Bretagne SudLorientFrance
  4. 4.CNRS, SIGMA Clermont, Institut PascalUniversité Clermont AuvergneClermont-FerrandFrance
  5. 5.SIGMA Clermont, Campus Design, Matériaux & InnovationAubière CedexFrance

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