Poisson's ratio and compressibility of arterial wall-Improved experimental data reject auxetic behaviour

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU144447" target="_blank" >RIV/00216305:26210/22:PU144447 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S175161612200145X" target="_blank" >https://www.sciencedirect.com/science/article/pii/S175161612200145X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmbbm.2022.105229" target="_blank" >10.1016/j.jmbbm.2022.105229</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Poisson's ratio and compressibility of arterial wall-Improved experimental data reject auxetic behaviour

Popis výsledku v původním jazyce

Poisson's ratio of fibrous soft tissue is analyzed in this paper on the basis of direct experimental measurements of porcine arterial wall layer under uniaxial tension and immersed in tempered saline bath. The current study follows the previously published testing methodology but with a new totally redesigned testing apparatus allowing more credible and precise evaluation of arterial wall behaviour. The new results confirm most of previous findings focused on positivity/negativity of Poisson's ratio playing a crucial role in (in)validation aspects of some constitutive models widely used in recent computational vascular mechanics. The effect of frozen & thawed conditions is also evaluated in comparison with fresh specimens. The in-plane Poisson's ratio of arterial wall was identified in the range of 0.3-0.4, whereas its out-of-plane component is much higher ranging from 0.5 to 0.7. These results contrast with predictions of some frequently used constitutive models. The volumetric (in) compressibility of arterial specimens is also analyzed, quantified and discussed in the paper, as a key property of soft tissues closely related to the topic of their constitutive modelling.

Název v anglickém jazyce

Poisson's ratio and compressibility of arterial wall-Improved experimental data reject auxetic behaviour

Popis výsledku anglicky

Poisson's ratio of fibrous soft tissue is analyzed in this paper on the basis of direct experimental measurements of porcine arterial wall layer under uniaxial tension and immersed in tempered saline bath. The current study follows the previously published testing methodology but with a new totally redesigned testing apparatus allowing more credible and precise evaluation of arterial wall behaviour. The new results confirm most of previous findings focused on positivity/negativity of Poisson's ratio playing a crucial role in (in)validation aspects of some constitutive models widely used in recent computational vascular mechanics. The effect of frozen & thawed conditions is also evaluated in comparison with fresh specimens. The in-plane Poisson's ratio of arterial wall was identified in the range of 0.3-0.4, whereas its out-of-plane component is much higher ranging from 0.5 to 0.7. These results contrast with predictions of some frequently used constitutive models. The volumetric (in) compressibility of arterial specimens is also analyzed, quantified and discussed in the paper, as a key property of soft tissues closely related to the topic of their constitutive modelling.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20602 - Medical laboratory technology (including laboratory samples analysis; diagnostic technologies) (Biomaterials to be 2.9 [physical characteristics of living material as related to medical implants, devices, sensors])

Projekt

<a href="/cs/project/GA21-21935S" target="_blank" >GA21-21935S: Výpočtové modelování pulzačního proudění v poddajných trubicích s aplikací na tandemovou stenózu karotidy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of the mechanical behavior of biomedical materials

ISSN

1751-6161

e-ISSN

1878-0180

Svazek periodika

131

Číslo periodika v rámci svazku

131

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

„105229-1“-„105229-11“

Kód UT WoS článku

000793520800002

EID výsledku v databázi Scopus

2-s2.0-85128240441