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BURŠA, J. HRUBANOVÁ, A. SKÁCEL, P. FISCHER, J. TURČANOVÁ, M. LISICKÝ, O.
Original Title
ANISOTROPY OF SOFT BIOLOGICAL TISSUES AND ITS CONSIDERATION IN CONSTITUTIVE MODELS OF ARTERIES
Type
article in a collection out of WoS and Scopus
Language
English
Original Abstract
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.
Keywords
Anisotropy; Mechanical properties; Hyperelasticity; Soft tissue; Collagen fibre
Authors
BURŠA, J.; HRUBANOVÁ, A.; SKÁCEL, P.; FISCHER, J.; TURČANOVÁ, M.; LISICKÝ, O.
Released
9. 5. 2023
Publisher
Institute of Thermomechanics AS CR, v.v.i.
Location
Milovy
ISBN
978-80-87012-84-0
Book
ENGINEERING MECHANICS 2023 29th INTERNATIONAL CONFERENCE
Edition number
29
1805-8248
Periodical
Engineering Mechanics ....
Number
State
Czech Republic
Pages from
17
Pages to
26
Pages count
10
URL
https://www.engmech.cz/im/doc/EM2023_proceedings.pdf
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", journal="Engineering Mechanics ....", number="29", pages="17--26", publisher="Institute of Thermomechanics AS CR, v.v.i.", address="Milovy", isbn="978-80-87012-84-0", issn="1805-8248", url="https://www.engmech.cz/im/doc/EM2023_proceedings.pdf" }