Mullins Effect in Aorta and Limiting Extensibility Evolution

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F10%3A00167128" target="_blank" >RIV/68407700:21220/10:00167128 - 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

Mullins Effect in Aorta and Limiting Extensibility Evolution

Popis výsledku v původním jazyce

Cyclic uniaxial tensile tests of human aorta were performed with an aim to obtain data describing the Mullins effect. Significant stress softening of aortic tissue and residual strains were confirmed. It was hypothesized that the stress softening observed within reloading of previously loaded tissue may be described by an evolution of material parameters. The model based on changes in limiting fiber extensibility, primarily represented by a collagen, was proposed. The arterial wall was assumed to be hyperelastic transversely isotropic material with different response under primary loading and unloading. Every straining level in the cyclic test had its own value of fiber extensibility. Explicit form of the relation between evolving limiting extensibility and maximum previously sustained deformation was proposed. The predictions of the model described above were in good agreement with observations.

Název v anglickém jazyce

Mullins Effect in Aorta and Limiting Extensibility Evolution

Popis výsledku anglicky

Cyclic uniaxial tensile tests of human aorta were performed with an aim to obtain data describing the Mullins effect. Significant stress softening of aortic tissue and residual strains were confirmed. It was hypothesized that the stress softening observed within reloading of previously loaded tissue may be described by an evolution of material parameters. The model based on changes in limiting fiber extensibility, primarily represented by a collagen, was proposed. The arterial wall was assumed to be hyperelastic transversely isotropic material with different response under primary loading and unloading. Every straining level in the cyclic test had its own value of fiber extensibility. Explicit form of the relation between evolving limiting extensibility and maximum previously sustained deformation was proposed. The predictions of the model described above were in good agreement with observations.

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

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

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

6

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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