Publication detail

FE models of stress-strain states in vascular smooth muscle cell

BURŠA, J. LEBIŠ, R. JANÍČEK, P.

Czech title

MKP modely deformačně napěťových stavů v hladkých svalových buňkách cév

English title

FE models of stress-strain states in vascular smooth muscle cell

Type

journal article - other

Language

en

Original abstract

The paper deals with problems related to computational modelling of stress-strain states in vascular smooth muscle cells (SMCs). First, motivation for stress-strain analysis of SMCs is presented. Problems of their structure, geometry, constitutive models and initial (stress-free) state are analyzed on the basis of anatomical, histological and physiological knowledge. Various types of computational FE models of SMCs are presented; their constitutive models are identified on the basis of published mechanical tests carried out with SMCs cultured in vitro. Results of two models are presented; the former is a homogeneous model of the cell tension test with hyperelastic constitutive relations of the cell material. The latter model is more complex, it comprehends cortical and deep cytoskeleton, modelled as a tensegrity structure, and homogeneous linear elastic nucleus and remaining cytoplasm; it is used in computational modelling of indentation test. Perspectives, assumptions and limitations of computational modelling of SMCs under physiological load are discussed.

Czech abstract

Článek se zabývá výpočtovou simulací mechanických zkoušek izolovaných hladkých svalových buněk cévní stěny (SMCs). V článku jsou diskutovány otázky geometrie, struktury a materiálových vlastností SMC buněk a jejich výchozího (beznapěťového) stavu. Pro simulaci zkoušek jsou použity různé úrovně výpočtových modelů a jejich konstitutivní parametry jsou identifikovány na základě zkoušek publikovaných v literatuře. Jsou prezentovány výsledky jednak simulace tahové zkoušky SMC pomocí modelu homogenního hyperelastického materiálu, jednak zkoušky vtlačovací pomocí modelu zahrnujícího některé prvky struktury buňky v podobě jádra a cytoskeletu, modelovaného pomocí tensegritní struktury. Jsou diskutovány perspektivy, předpoklady a omezení výpočtových modelů SMC buněk při fyziologických zatěžovacích podmínkách.

English abstract

The paper deals with problems related to computational modelling of stress-strain states in vascular smooth muscle cells (SMCs). First, motivation for stress-strain analysis of SMCs is presented. Problems of their structure, geometry, constitutive models and initial (stress-free) state are analyzed on the basis of anatomical, histological and physiological knowledge. Various types of computational FE models of SMCs are presented; their constitutive models are identified on the basis of published mechanical tests carried out with SMCs cultured in vitro. Results of two models are presented; the former is a homogeneous model of the cell tension test with hyperelastic constitutive relations of the cell material. The latter model is more complex, it comprehends cortical and deep cytoskeleton, modelled as a tensegrity structure, and homogeneous linear elastic nucleus and remaining cytoplasm; it is used in computational modelling of indentation test. Perspectives, assumptions and limitations of computational modelling of SMCs under physiological load are discussed.

Keywords in English

smooth muscle cell, finite element method, tensegrity, mechanical test, computational simulation

RIV year

2006

Released

10.10.2006

Publisher

IOS Press

Location

Nieuwe Hemweg 6B, 1013 BG, The Netherlands

ISSN

0928-7329

Journal

Technology and Health Care, Int. Journal of Health Care Engineering

Volume

14

Number

4,5

Pages from–to

311–320

Pages count

10

BIBTEX


@article{BUT43914,
  author="Jiří {Burša} and Radek {Lebiš} and Přemysl {Janíček},
  title="FE models of stress-strain states in vascular smooth muscle cell",
  journal="Technology and Health Care, Int. Journal of Health Care Engineering",
  year="2006",
  volume="14",
  number="4,5",
  month="October",
  pages="311--320",
  publisher="IOS Press",
  address="Nieuwe Hemweg 6B, 1013 BG, The Netherlands",
  issn="0928-7329"
}