A pseudo-elastic model for the Mullins effect in human aorta

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F10%3A00170693" target="_blank" >RIV/68407700:21220/10:00170693 - 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

A pseudo-elastic model for the Mullins effect in human aorta

Popis výsledku v původním jazyce

This paper is focused on developing the theory which describes the Mullins effect in human aorta. Uni-axial cyclic tensile tests were performed. In order to account anisotropy of arterial tissue, longitudinally as well as circumferentially resected samples of human aorta were tested. Each artery sample underwent repeated (four times) loading and unloading to a certain value of maximum stretch. Arterial tissue was considered as hyperelastic, transversally isotropic, incompressible material. A strain energy function was adopted in the limiting fiber extensibility form. Description of material response, followed by material stress softening in the repeated cycles, is based upon pseudo-elastic constitutive model proposed by Dorfmann and Ogden. This theorywas developed using anisotropic form of the softening variable. The model with estimated parameters successfully fit experimental data and is suitable for application in biomedicine.

Název v anglickém jazyce

A pseudo-elastic model for the Mullins effect in human aorta

Popis výsledku anglicky

This paper is focused on developing the theory which describes the Mullins effect in human aorta. Uni-axial cyclic tensile tests were performed. In order to account anisotropy of arterial tissue, longitudinally as well as circumferentially resected samples of human aorta were tested. Each artery sample underwent repeated (four times) loading and unloading to a certain value of maximum stretch. Arterial tissue was considered as hyperelastic, transversally isotropic, incompressible material. A strain energy function was adopted in the limiting fiber extensibility form. Description of material response, followed by material stress softening in the repeated cycles, is based upon pseudo-elastic constitutive model proposed by Dorfmann and Ogden. This theorywas developed using anisotropic form of the softening variable. The model with estimated parameters successfully fit experimental data and is suitable for application in biomedicine.

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F08%2F0557" target="_blank" >GA106/08/0557: Materiálové vlastnosti žil a jejich remodelace</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Human Biomechanics 2010

ISBN

978-80-7372-648-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Technical University of Liberec

Místo vydání

Liberec

Místo konání akce

Sychrov

Datum konání akce

4. 10. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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