Affine kinematics in planar fibrous connective tissues: an experimental investigation

Abstract : The affine transformation hypothesis is usually adopted in order to link the tissue scale with the fibers scale in structural constitutive models of fibrous tissues. Thanks to the recent advances in imaging techniques, such as multiphoton microscopy, the microstructural behavior and kinematics of fibrous tissues can now be monitored at different stretching within the same sample. Therefore, the validity of the affine hypothesis can be investigated. In this paper, the fiber reorientation predicted by the affine assumption is compared to experimental data obtained during mechanical tests on skin and liver capsule coupled with microstructural imaging using multiphoton microscopy. The values of local strains and the collagen fibers orientation measured at increasing loading levels are used to compute a theoretical estimation of the affine reorientation of collagen fibers. The experimentally measured reorientation of collagen fibers during loading could not be successfully reproduced with this simple affine model. It suggests that other phenomena occur in the stretching process of planar fibrous connective tissues, which should be included in structural constitutive modeling approaches.
Type de document :
Article dans une revue
Biomechanics and Modeling in Mechanobiology, Springer Verlag, 2017, pp.1-15. 〈10.1007/s10237-017-0899-1〉
Liste complète des métadonnées

Littérature citée [38 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-01529263
Contributeur : Jean-Sébastien Affagard <>
Soumis le : mercredi 14 juin 2017 - 15:10:52
Dernière modification le : mardi 12 février 2019 - 14:24:27
Document(s) archivé(s) le : mardi 12 décembre 2017 - 10:56:21

Fichier

affine_transfo_paper_vf.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Charles Jayyosi, Jean-Sébastien Affagard, Guillaume Ducourthial, Christelle Bonod-Bidaud, Barbara Lynch, et al.. Affine kinematics in planar fibrous connective tissues: an experimental investigation. Biomechanics and Modeling in Mechanobiology, Springer Verlag, 2017, pp.1-15. 〈10.1007/s10237-017-0899-1〉. 〈hal-01529263〉

Partager

Métriques

Consultations de la notice

779

Téléchargements de fichiers

191