Computational modelling of stress and strain states in aorta

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F00%3A00000146" target="_blank" >RIV/00216305:26210/00:00000146 - 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

Computational modelling of stress and strain states in aorta

Popis výsledku v původním jazyce

The presented computational model of stress and strain states in the aortic wall respects blood pressure, axial prestretch, residual stress and a multilayer structure of the wall. It shows a pronounced influence of the additional load factors decreasongthe maximum circumferential stress and the extreme stress ratio substantially. This can be generalized for residual stress state in any multilayer cylindrical vessel. Thus applications in practical technical computations are enabled (plastic tubes). There exist physiological blood pressure values, at which either the stress or the strain state in each layer of the wall is nearly homogeneous. A sensitivity analysis of the influence of surrounding tissues on the stress and strain state of the aorta was carried out. The results depend a great deal on boundary conditions used in the model and on elasticity moduli of surrounding tissues.

Název v anglickém jazyce

Computational modelling of stress and strain states in aorta

Popis výsledku anglicky

The presented computational model of stress and strain states in the aortic wall respects blood pressure, axial prestretch, residual stress and a multilayer structure of the wall. It shows a pronounced influence of the additional load factors decreasongthe maximum circumferential stress and the extreme stress ratio substantially. This can be generalized for residual stress state in any multilayer cylindrical vessel. Thus applications in practical technical computations are enabled (plastic tubes). There exist physiological blood pressure values, at which either the stress or the strain state in each layer of the wall is nearly homogeneous. A sensitivity analysis of the influence of surrounding tissues on the stress and strain state of the aorta was carried out. The results depend a great deal on boundary conditions used in the model and on elasticity moduli of surrounding tissues.

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2000

Kód důvěrnosti údajů

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

Název statě ve sborníku

ESB 2000

ISBN

0-9538809-0-7

ISSN

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e-ISSN

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Počet stran výsledku

1

Strana od-do

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Název nakladatele

Royal Academy of Medicine in Ireland

Místo vydání

Dublin, Ireland

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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