poroelastic model of intraluminal thrombus in FEA of aortic aneurysm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F10%3APU87820" target="_blank" >RIV/00216305:26210/10:PU87820 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
poroelastic model of intraluminal thrombus in FEA of aortic aneurysm
Original language description
The influence of the intraluminal thrombus (ILT) on the biomechanics of the abdominal aortic aneurysm (AAA) has been investigated for several years both numerically and experimentally. The FE analyses published till now simplified the material of the ILTas a homogenous continuum, but there is a contradiction between experiments and FE results. Therefore we use a poroelastic constitutive model for ILT. Poroelastic behaviour of the used finite element is based on the Biot theory of consolidation, the model consists of fluid and solid parts. By using idealized AAA models, we showed that the pres-sure decrease through the ILT is small for an 18mm thick ILT. Therefore approx. 90% of the blood pressure is acting on the inner AAA wall surface. These resultsagree very well with all experimental results, which show either slight or no pressure reduction. The wall stresses calculated by our approach are almost the same as those obtained by using the homogenous material model for ILT. Remarkabl
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
S - Specificky vyzkum na vysokych skolach

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

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