Anisotropic and hyperelastic identification of in vitro human arteries from full-field optical measurements

JOURNAL OF BIOMECHANICS

卷:43

Article

Avril, Stephane¹ 

[1] Ecole Natl Super Mines, Ctr Hlth Engn, PECM, CNRS,UMR 5146, F-42023 St Etienne 2, France

关键词: Vascular mechanics;    Identification;    Hyperelasticity;    Anisotropy;    Artery;   

DOI  :  10.1016/j.jbiomech.2010.07.004

来源: Elsevier

【 摘 要 】

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. (C) 2010 Elsevier Ltd. All rights reserved.

【 授权许可】

Free