Anisotropic and hyperelastic identification of in vitro human arteries from full-field optical measurements.
In this paper, we present a new approach for the bi-axial characterization of in vitro human arteries and we prove its feasibility on an example. The specificity of the approach is that it can handle heterogeneous strain and stress distributions in arterial segments. From the full-field experimental data obtained in inflation/extension tests, an inverse approach, called the virtual fields method (VFM), is used for deriving the material parameters of the tested arterial segment. The obtained results are promising and the approach can effectively provide relevant values for the anisotropic hyperelastic properties of the tested sample.
Avril
Stéphane
S
Center for Health Engineering, Ecole Nationale Supérieure des Mines de Saint-Étienne, PECM - CNRS UMR 5146; IFRESIS - INSERM IFR 143, 158 Cours Fauriel, 42023 SAINT-ÉTIENNE cedex 2, France. avril@emse.fr
Badel
Pierre
P
Duprey
Ambroise
A
D000368:Aged; D016880:Anisotropy; D001011:Aorta / Q000502:physiology; D001158:Arteries / Q000502:physiology*; D001696:Biomechanical Phenomena; D004548:Elasticity; D005260:Female; D020342:Finite Element Analysis; D006801:Humans; D021621:Imaging, Three-Dimensional; D066298:In Vitro Techniques; D008955:Models, Cardiovascular; D055620:Optical Phenomena; D013314:Stress, Mechanical; D014584:User-Computer Interface