Theoretical models in mechanics of the left ventricle. - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Biorheology Année : 1984

Theoretical models in mechanics of the left ventricle.

Résumé

Different rheological concepts and theoretical studies have been recently presented using models of myocardial mechanics. Complex analysis of the mechanical behavior of the left ventricular wall have been developed in order to estimate the local stresses and deformations that occur during the heart cycle as well as the ventricular stroke volume and pressure. Theoretical models have taken into account non-linear and viscoelastic passive properties of the myocardium tissue, when subjected to large deformations, through given strain energy functions or stress-strain relations. Different prolate spheroid geometries have been considered for such thick shell cardiac structure. During the active state of the contraction, the rheological behavior of the fibers has been described using different muscle models and relationships between fiber tension and strain, and activation degree. A forthcoming approach for bridging the gap between the knowledge of the muscle fiber microrheological properties and the study of the mechanical behavior of the entire ventricle, consists in including anisotropic and inhomogeneous effects through fiber direction field.
Fichier non déposé

Dates et versions

hal-00846429 , version 1 (19-07-2013)

Identifiants

  • HAL Id : hal-00846429 , version 1
  • PUBMED : 6394067

Citer

G. Pelle, J. Ohayon, C. Oddou, P. Brun. Theoretical models in mechanics of the left ventricle.. Biorheology, 1984, 21 (5), pp.709-22. ⟨hal-00846429⟩
1152 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More