Identifikace materiálových parametrů aortální stěny

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F06%3A02123445" target="_blank" >RIV/68407700:21220/06:02123445 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Identification of material parameters of an aortic wall

Popis výsledku v původním jazyce

Inflation tests with human thoracic aorta specimens were performed with the aim of fitting a material model. The experimental data was used in a nonlinear regression analysis to identify the material parameters. The aortic tissue was assumed to be an incompressible hyperelastic material. 5&#8211;parameter strain energy density function based on a combination of an isotropic Neo&#8211;Hookean expression and a Fung&#8211;type orthotropic expression was used. The computational model was based on the boundary value problem of an inflated thick&#8211;walled tube with axial pre&#8211;strains. Residual strains were included. The internal structure of the arterial walls was not considered. The fitted material models correspond very well with the experimental data. Significant stiffening under large strains was observed. It was concluded that the combined model of the strain energy density function is suitable for the aortic mechanical response description. The material parameters satisfy the c

Název v anglickém jazyce

Identification of material parameters of an aortic wall

Popis výsledku anglicky

Inflation tests with human thoracic aorta specimens were performed with the aim of fitting a material model. The experimental data was used in a nonlinear regression analysis to identify the material parameters. The aortic tissue was assumed to be an incompressible hyperelastic material. 5&#8211;parameter strain energy density function based on a combination of an isotropic Neo&#8211;Hookean expression and a Fung&#8211;type orthotropic expression was used. The computational model was based on the boundary value problem of an inflated thick&#8211;walled tube with axial pre&#8211;strains. Residual strains were included. The internal structure of the arterial walls was not considered. The fitted material models correspond very well with the experimental data. Significant stiffening under large strains was observed. It was concluded that the combined model of the strain energy density function is suitable for the aortic mechanical response description. The material parameters satisfy the c

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F04%2F1181" target="_blank" >GA106/04/1181: Identifikace materiálových vlastností cévních stěn</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bulletin of Applied Mechanics

ISSN

1801-1217

e-ISSN

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Svazek periodika

2

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

173-181

Kód UT WoS článku

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EID výsledku v databázi Scopus

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