Mechanical Response of the Human Aorta to the Delamination at Different Loading Velocities

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00358169" target="_blank" >RIV/68407700:21220/22:00358169 - 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

Mechanical Response of the Human Aorta to the Delamination at Different Loading Velocities

Popis výsledku v původním jazyce

Our study deals with the delamination strength of the human aorta. Rectangular strips of the aorta were obtained from three different locations - ascending thoracic aorta, descending thoracic aorta, and abdominal aorta. Peeling experiments were designed to take into account possible effects of arterial anisotropy and a rate-dependent mechanical response. The peeling was carried out at four different loading rates: 0.1, 1, 10, and 50 mms-1. The experiments carried out with samples received from the ascending thoracic aorta and from the abdominal aorta did not show significant effect of the velocity on the delamination strength. On the other hand, the results suggest that in the thoracic region descending aorta delaminates at significantly higher force when teared at 50 mms-1 in comparison with the delamination conducted at speed of 0.1 mms-1. This result was found for both circumferential and longitudinal orientation of samples.

Název v anglickém jazyce

Mechanical Response of the Human Aorta to the Delamination at Different Loading Velocities

Popis výsledku anglicky

Our study deals with the delamination strength of the human aorta. Rectangular strips of the aorta were obtained from three different locations - ascending thoracic aorta, descending thoracic aorta, and abdominal aorta. Peeling experiments were designed to take into account possible effects of arterial anisotropy and a rate-dependent mechanical response. The peeling was carried out at four different loading rates: 0.1, 1, 10, and 50 mms-1. The experiments carried out with samples received from the ascending thoracic aorta and from the abdominal aorta did not show significant effect of the velocity on the delamination strength. On the other hand, the results suggest that in the thoracic region descending aorta delaminates at significantly higher force when teared at 50 mms-1 in comparison with the delamination conducted at speed of 0.1 mms-1. This result was found for both circumferential and longitudinal orientation of samples.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA20-11186S" target="_blank" >GA20-11186S: Mechanika tepenné delaminace a šíření trhliny</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 statě ve sborníku

EAN 2021 59th conference on experimental stress analysis

ISBN

978-80-01-06885-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

182-185

Název nakladatele

katedra mechaniky

Místo vydání

Praha

Místo konání akce

Litomyšl

Datum konání akce

29. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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