Publication detail

Biaxial tension tests with soft tissues of arterial wall

ZEMÁNEK, M. BURŠA, J. DĚTÁK, M.

Original Title

Biaxial tension tests with soft tissues of arterial wall

English Title

Biaxial tension tests with soft tissues of arterial wall

Type

journal article - other

Language

en

Original Abstract

The paper presents results of mechanical testing of soft tissues (arterial walls) under biaxial stress conditions and analysis of the influence of some factors, such as specimen location, preconditioning, etc. Soft tissues are pseudoelastic materials, modelled mostly as hyperelastic, either isotropic or anisotropic ones. Therefore multiaxial (biaxial) mechanical tests are required for a credible identification of their mechanical parameters. As living tissue proporties change with time after excision and exhibit also viscoelastic behaviour, a much more specialized equipment is needed to perform biaxial tests of soft tissues. A test rig for biaxial tests is presented in the paper and a pronounced influence of stress state character on the specimen behaviour during several first cycles is analyzed.

English abstract

The paper presents results of mechanical testing of soft tissues (arterial walls) under biaxial stress conditions and analysis of the influence of some factors, such as specimen location, preconditioning, etc. Soft tissues are pseudoelastic materials, modelled mostly as hyperelastic, either isotropic or anisotropic ones. Therefore multiaxial (biaxial) mechanical tests are required for a credible identification of their mechanical parameters. As living tissue proporties change with time after excision and exhibit also viscoelastic behaviour, a much more specialized equipment is needed to perform biaxial tests of soft tissues. A test rig for biaxial tests is presented in the paper and a pronounced influence of stress state character on the specimen behaviour during several first cycles is analyzed.

Keywords

constitutive models, mechanical behaviour, viscoelasticity, viscoplasticity, hardening.

RIV year

2009

Released

16.01.2009

Publisher

Engineering Academy of the Czech Republic

Location

Brno

Pages from

3

Pages to

12

Pages count

10

Documents

BibTex


@article{BUT49078,
  author="Miroslav {Zemánek} and Jiří {Burša} and Michal {Děták}",
  title="Biaxial tension tests with soft tissues of arterial wall",
  annote="The paper presents results of mechanical testing of soft tissues (arterial walls) under biaxial stress conditions and analysis of the influence of some factors, such as specimen location, preconditioning, etc. Soft tissues are pseudoelastic materials, modelled mostly as hyperelastic, either isotropic or anisotropic ones. Therefore multiaxial (biaxial) mechanical tests are required for a credible identification of their mechanical parameters. As living tissue proporties change with time after excision and exhibit also viscoelastic behaviour, a much more specialized equipment is needed to perform biaxial tests of soft tissues. A test rig for biaxial tests is presented in the paper and a pronounced influence of stress state character on the specimen behaviour during several first cycles is analyzed.",
  address="Engineering Academy of the Czech Republic",
  chapter="49078",
  institution="Engineering Academy of the Czech Republic",
  journal="Engineering Mechanics",
  number="1",
  volume="16",
  year="2009",
  month="january",
  pages="3--12",
  publisher="Engineering Academy of the Czech Republic",
  type="journal article - other"
}