Abstract
The purpose of this work is to study the level of principal stresses, equivalent von Mises stress and displacements in two 3D geometric models of an abdominal aortic aneurysm (AAA) and a non-aneurysmal aorta (NAA), under three different blood pressure conditions. In order to perform the numerical simulation, it was considered the Finite Element Method (FEM) and a meshless method - the Radial Point Interpolation Method (RPIM). The results obtained with both numerical methods were compared. The obtained results demonstrated that the stresses and displacements in the NAA model are uniformly distributed along the inner surface. Differently, in the AAA model, the higher values are located at the end of the aneurysmal neck, indicating sites of potential rupture. Both FEM and RPIM allow to obtain similar results, regardless the analysed model. Lastly, since in this work elastic material assumptions were considered, the increase of blood pressure increases in the same proportion the value of stresses and displacements.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
