Publication detail
COMPUTATIONAL MODELLING OF BEHAVIOUR OF SOFT BIOLOGICAL TISSUES
BURŠA, J. LEBIŠ, R. RYŠAVÝ, P.
Czech title
Výpočtové modelováníé chování měkkých biologických tkání
English title
COMPUTATIONAL MODELLING OF BEHAVIOUR OF SOFT BIOLOGICAL TISSUES
Type
conference paper
Language
en
Original abstract
Abstract: The paper deals with computational modelling of mechanical behaviour of soft tissues in arterial wall. Three computational models are presented. Model No. 1 models abdominal aortic aneurysms (AAA) at the level of a multilayer aortic wall structure with hyperelastic isotropic material properties of the individual layers. The extreme principal stress in the AAA is evaluated and compared with the stress in an intact aorta. The ratio of these stresses should be used in the evaluation of AAA rupture risk. Model No. 2 models an individual smooth muscle cell (SMC) at the level of a homogeneous hyperelastic isotropic continuum. Parameters of the 5-parameter-Mooney-Rivlin constitutive model are identified from the tension test of the SMC. Model No.3 models tension and indentation tests of SMCs with taking the cell structure into account, with cytoskeleton represented by a simple tensegrity structure.
Czech abstract
The paper deals with computational modelling of mechanical behaviour of soft tissues in arterial wall. Three computational models are presented. Model No. 1 models abdominal aortic aneurysms (AAA) at the level of a multilayer aortic wall structure with hyperelastic isotropic material properties of the individual layers. The extreme principal stress in the AAA is evaluated and compared with the stress in an intact aorta. The ratio of these stresses should be used in the evaluation of AAA rupture risk. Model No. 2 models an individual smooth muscle cell (SMC) at the level of a homogeneous hyperelastic isotropic continuum. Parameters of the 5-parameter-Mooney-Rivlin constitutive model are identified from the tension test of the SMC. Model No.3 models tension and indentation tests of SMCs with taking the cell structure into account, with cytoskeleton represented by a simple tensegrity structure.
English abstract
Abstract: The paper deals with computational modelling of mechanical behaviour of soft tissues in arterial wall. Three computational models are presented. Model No. 1 models abdominal aortic aneurysms (AAA) at the level of a multilayer aortic wall structure with hyperelastic isotropic material properties of the individual layers. The extreme principal stress in the AAA is evaluated and compared with the stress in an intact aorta. The ratio of these stresses should be used in the evaluation of AAA rupture risk. Model No. 2 models an individual smooth muscle cell (SMC) at the level of a homogeneous hyperelastic isotropic continuum. Parameters of the 5-parameter-Mooney-Rivlin constitutive model are identified from the tension test of the SMC. Model No.3 models tension and indentation tests of SMCs with taking the cell structure into account, with cytoskeleton represented by a simple tensegrity structure.
Keywords in Czech
Výpočtové modelování, hladká svalová buňka
Keywords in English
Computational modelling, smooth muscle cell
RIV year
2005
Released
20.11.2005
Location
Prague
ISSN
1727-1983
Book
IFMBE Proceedings
Journal
IFMBE Proceedings
Volume
2005
Number
11
Pages count
6
BIBTEX
@inproceedings{BUT18362,
author="Jiří {Burša} and Radek {Lebiš} and Pavel {Ryšavý},
title="COMPUTATIONAL MODELLING OF BEHAVIOUR OF SOFT BIOLOGICAL TISSUES",
journal="IFMBE Proceedings",
booktitle="IFMBE Proceedings",
year="2005",
volume="2005",
number="11",
month="November",
address="Prague",
issn="1727-1983"
}