Publication detail

Poisson's ratio of arterial wall – inconsistency of constitutive models with experimental data

SKÁCEL, P. BURŠA, J.

Original Title

Poisson's ratio of arterial wall – inconsistency of constitutive models with experimental data

English Title

Poisson's ratio of arterial wall – inconsistency of constitutive models with experimental data

Type

journal article in Web of Science

Language

en

Original Abstract

Poisson's ratio of fibrous soft tissues is analyzed in this paper on the basis of constitutive models and experimental data. Three different up-to-date constitutive models accounting for the dispersion of fibre orientations are analyzed. Their predictions of the anisotropic Poisson's ratios are investigated under finite strain conditions together with the effects of specific orientation distribution functions and of other parameters. The applied constitutive models predict the tendency to lower (or even negative) out-of-plane Poisson's ratio. New experimental data of porcine arterial layer under uniaxial tensile conditions in orthogonal directions are also presented and compared with the theoretical predictions and other literature data. The results point out the typical features of recent constitutive models with fibres concentrated in circumferential-axial plane of arterial layers and their potential inconsistence with some experimental data. The volumetric (in)compressibility of arterial tissues is also discussed as an eventual and significant factor influencing this inconsistency.

English abstract

Poisson's ratio of fibrous soft tissues is analyzed in this paper on the basis of constitutive models and experimental data. Three different up-to-date constitutive models accounting for the dispersion of fibre orientations are analyzed. Their predictions of the anisotropic Poisson's ratios are investigated under finite strain conditions together with the effects of specific orientation distribution functions and of other parameters. The applied constitutive models predict the tendency to lower (or even negative) out-of-plane Poisson's ratio. New experimental data of porcine arterial layer under uniaxial tensile conditions in orthogonal directions are also presented and compared with the theoretical predictions and other literature data. The results point out the typical features of recent constitutive models with fibres concentrated in circumferential-axial plane of arterial layers and their potential inconsistence with some experimental data. The volumetric (in)compressibility of arterial tissues is also discussed as an eventual and significant factor influencing this inconsistency.

Keywords

Arterial wall mechanics; Poisson's ratio; Compressibility; Anisotropy; Constitutive modelling; Hyperfit software

Released

15.02.2016

Publisher

Elsevier

Location

Nizozemsko

Pages from

316

Pages to

327

Pages count

12

URL

Documents

BibTex


@article{BUT122955,
  author="Pavel {Skácel} and Jiří {Burša}",
  title="Poisson's ratio of arterial wall – inconsistency of constitutive models with experimental data",
  annote="Poisson's ratio of fibrous soft tissues is analyzed in this paper on the basis of constitutive models and experimental data. Three different up-to-date constitutive models accounting for the dispersion of fibre orientations are analyzed. Their predictions of the anisotropic Poisson's ratios are investigated under finite strain conditions together with the effects of specific orientation distribution functions and of other parameters. The applied constitutive models predict the tendency to lower (or even negative) out-of-plane Poisson's ratio. New experimental data of porcine arterial layer under uniaxial tensile conditions in orthogonal directions are also presented and compared with the theoretical predictions and other literature data. The results point out the typical features of recent constitutive models with fibres concentrated in circumferential-axial plane of arterial layers and their potential inconsistence with some experimental data. The volumetric (in)compressibility of arterial tissues is also discussed as an eventual and significant factor influencing this inconsistency.",
  address="Elsevier",
  chapter="122955",
  doi="10.1016/j.jmbbm.2015.09.029",
  howpublished="print",
  institution="Elsevier",
  number="1",
  volume="54",
  year="2016",
  month="february",
  pages="316--327",
  publisher="Elsevier",
  type="journal article in Web of Science"
}