Influence of geometric simplifications on stresses and strains in aneurysm model.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F09%3APU83941" target="_blank" >RIV/00216305:26210/09:PU83941 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/10:PU83941

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of geometric simplifications on stresses and strains in aneurysm model.

Popis výsledku v původním jazyce

The paper deals with a possibility of replacing real cross sections of abdominal aortic aneurysm (AAA) by simplified cross sections with a circular or elliptic shape and with the influence of these simplifications on results obtained by FEM solutions. The shapes of AAA cross sections are obtained from sequenced CT frames (scans??) of a real patient. Naturally, the assumption of simplified cross section shapes smoothes down many local shape variations. To assess the influence of this effect on the calculated stress-strain states, a comparison of two models has been carried out. First, the analysis was realized with an real geometry model, created from the original, unchanged CT frames of the AAA. Second, a geometric model was created from the simplifiedCT frames with circular or elliptical shape of the cross sections. The same FE stress-strain analysis was carried out in both cases with a hyperelastic constitutive model. Comparison of results is then made via maximal principal stresses

Název v anglickém jazyce

Influence of geometric simplifications on stresses and strains in aneurysm model.

Popis výsledku anglicky

The paper deals with a possibility of replacing real cross sections of abdominal aortic aneurysm (AAA) by simplified cross sections with a circular or elliptic shape and with the influence of these simplifications on results obtained by FEM solutions. The shapes of AAA cross sections are obtained from sequenced CT frames (scans??) of a real patient. Naturally, the assumption of simplified cross section shapes smoothes down many local shape variations. To assess the influence of this effect on the calculated stress-strain states, a comparison of two models has been carried out. First, the analysis was realized with an real geometry model, created from the original, unchanged CT frames of the AAA. Second, a geometric model was created from the simplifiedCT frames with circular or elliptical shape of the cross sections. The same FE stress-strain analysis was carried out in both cases with a hyperelastic constitutive model. Comparison of results is then made via maximal principal stresses

Druh

D - Stať ve sborníku

CEP obor

BO - Biofyzika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F09%2F1732" target="_blank" >GA106/09/1732: VÍCEÚROVŇOVÉ MODELOVÁNÍ CHOVÁNÍ HYPERELASTICKÝCH ANIZOTROPNÍCH MATERIÁLŮ</a><br>

Návaznosti

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

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

IFMBE Proceedings

ISBN

978-3-642-03897-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

Springer

Místo vydání

Munich, Germany

Místo konání akce

Mnichov

Datum konání akce

7. 9. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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