Eventos Anais de eventos
CREEM2025
CREEM 2025 - XXXI Congresso Nacional de Estudantes de Engenharia Mecânica Congresso Nacional de Estudantes de Engenharia Mecânica
Análise da Interação Fluido - Estrutura em Aneurismas da Aorta Abdominal Usando do Modelo de Holzapfel pelo Método 2-Ways
Submission Author:
Murilo Parpinelli , SP , Brazil
Co-Authors:
Murilo Parpinelli, Mateus Tiossi Schincaglia, EDSON CAPELLO SOUSA, Marcio Bazani
Presenter: Murilo Parpinelli
doi://10.26678/ABCM.CREEM2025.CRE2025-0090
Abstract
This work investigates the rheological and structural modeling of arteries with a focus on the abdominal aorta, including the analysis of aneurysms. The modeling of the viscous behavior of blood is carried out using the Carreau-Yasuda law, which describes the transition between Newtonian behaviors at low and high shear rates. The Carreau-Yasuda model is presented along with its parameters. The arterial structure is modeled as a hyperelastic material, with emphasis on the tunica media, using the Holzapfel model, which accounts for fiber anisotropy. Fluid-structure interaction is performed through the two-way method, facilitating the iterative exchange of forces and deformations between the fluid and structural domains. The resolution of the fundamental Navier-Stokes equations is integrated to simulate blood flow behavior in the Ansys® software. The work provides a detailed description of the methods and models used, offering a solid foundation for advanced simulations and applications in biomechanics.
Keywords
Fluid-Structure Interactions (FSI), Carreau-Yasuda model, 2-ways coupling, Viscohiperelasticity, Holzapfel model
