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

Result code in 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>
Alternative codes found
RIV/00216305:26210/10:PU83941
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of geometric simplifications on stresses and strains in aneurysm model.
Original language description
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
Czech name
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Czech description
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Project
<a href="/en/project/GA106%2F09%2F1732" target="_blank" >GA106/09/1732: MULTISCALE MODELLING OF BEHAVIOUR OF HYPERELASTIC ANISOTROPIC MATERIALS</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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