Detail publikace
ANISOTROPY OF SOFT BIOLOGICAL TISSUES AND ITS CONSIDERATION IN CONSTITUTIVE MODELS OF ARTERIES
BURŠA, J. HRUBANOVÁ, A. SKÁCEL, P. FISCHER, J. TURČANOVÁ, M. LISICKÝ, O.
Anglický název
ANISOTROPY OF SOFT BIOLOGICAL TISSUES AND ITS CONSIDERATION IN CONSTITUTIVE MODELS OF ARTERIES
Typ
článek ve sborníku mimo WoS a Scopus
Jazyk
en
Originální abstrakt
Biomechanical computational models used more and more in medical research as well as in clinical applications need mathematical description of soft tissues with their very complex mechanical behaviour. They show large deformations with stress softening during cyclic loading, being moreover time-dependent due to their viscoelasticity, anisotropic due to fibrous structure and dependent on tissue excitation in case of muscular tissues, including smooth muscle cells in arterial walls. They are capable to adapt to the acting load (tissue remodelation) and to self-repair (healing) in case of damage or failure (rupture of fibres, etc.) This paper deals with constitutive description of passive elastic response of soft tissues to the acting load and with the ways, how the anisotropic structure of the tissue can be reflected. For this purpose, the spatial arrangement of fibres in the tissue needs to be detected and mathematically described. Lack of data on fibre arrangement in soft tissues and their interpatient variability is a major limiting factor for anisotropic constitutive description of soft tissues. Some problems related to transformation of results of mechanical tests and histological analyses of arterial tissues into parameters applicable in constitutive models are addressed as well.
Anglický abstrakt
Biomechanical computational models used more and more in medical research as well as in clinical applications need mathematical description of soft tissues with their very complex mechanical behaviour. They show large deformations with stress softening during cyclic loading, being moreover time-dependent due to their viscoelasticity, anisotropic due to fibrous structure and dependent on tissue excitation in case of muscular tissues, including smooth muscle cells in arterial walls. They are capable to adapt to the acting load (tissue remodelation) and to self-repair (healing) in case of damage or failure (rupture of fibres, etc.) This paper deals with constitutive description of passive elastic response of soft tissues to the acting load and with the ways, how the anisotropic structure of the tissue can be reflected. For this purpose, the spatial arrangement of fibres in the tissue needs to be detected and mathematically described. Lack of data on fibre arrangement in soft tissues and their interpatient variability is a major limiting factor for anisotropic constitutive description of soft tissues. Some problems related to transformation of results of mechanical tests and histological analyses of arterial tissues into parameters applicable in constitutive models are addressed as well.
Klíčová slova anglicky
Anisotropy; Mechanical properties; Hyperelasticity; Soft tissue; Collagen fibre
Vydáno
09.05.2023
Nakladatel
Institute of Thermomechanics AS CR, v.v.i.
Místo
Milovy
ISBN
978-80-87012-84-0
ISSN
1805-8248
Kniha
ENGINEERING MECHANICS 2023 29th INTERNATIONAL CONFERENCE
Číslo
29
Číslo edice
29
Strany od–do
17–26
Počet stran
10
BIBTEX
@inproceedings{BUT184869,
author="Jiří {Burša} and Anna {Hrubanová} and Pavel {Skácel} and Jiří {Fischer} and Michaela {Turčanová} and Ondřej {Lisický},
title="ANISOTROPY OF SOFT BIOLOGICAL TISSUES AND ITS CONSIDERATION IN CONSTITUTIVE MODELS OF ARTERIES",
booktitle="ENGINEERING MECHANICS 2023 29th INTERNATIONAL CONFERENCE",
year="2023",
number="29",
month="May",
pages="17--26",
publisher="Institute of Thermomechanics AS CR, v.v.i.",
address="Milovy",
isbn="978-80-87012-84-0",
issn="1805-8248"
}