Fluid-structure interaction within three-dimensional models of an idealized arterial wall
Language
en
Article de revue
This item was published in
International Journal of Engineering Science. 2014, vol. 84, p. 113-126
Elsevier
English Abstract
The ascending branch of the aorta is one of the most stressed organ of the arterial system. We aim to design a biomechanical model for analysing the aorta dynamics under a shock. The model includes the aorta layers and the ...Read more >
The ascending branch of the aorta is one of the most stressed organ of the arterial system. We aim to design a biomechanical model for analysing the aorta dynamics under a shock. The model includes the aorta layers and the influence of the blood pressure. We undertake a three-dimensional modal analysis of the coupled aorta-blood system. We determine in the present work the coupled natural frequencies and the modes shapes of the system of the aorta and blood. Three models are presented in this study: three-layers model, two-layers model and one layer model. For the analytical solving a potential technique is used to obtain a general solution for an aorta domain. The finite element model is then validated by these original analytical solutions. The results from the proposed method are in good agreement with numerical solutions.Read less <
English Keywords
fluid-structure interaction
Modal analysis
arterial wall
finite element method
multilayer
Origin
Hal imported