A Two-Way Fluid-Structure Interaction Approach to Investigate Hemodynamics and Mechanical Behavior of Cerebral Aneurysm: A Computational Study

Haneen Qirba, Saud Abdelaziz Khashan, Tariq Darabseh

Research output: Contribution to journalArticlepeer-review

Abstract

In this study, we computationally examine the biomechanics of a cerebral aneurysm (CA) using a two-way Fluid-Structure Interaction (FSI) approach. The integrated approach using computational fluid dynamics (CFD) and computational solid dynamics (CSD) aims to connect the intra-aneurysmal environment and the rupture process and assess the risk of aneurysm rupture. The velocity distribution and the wall shear stress (WSS) were calculated within these aneurysms. The dynamic response of cerebral aneurysms was predicted using CSD. We conducted parametric analyses based on CA aspect ratio (AR) and viscosity sensitivity analysis to allow easier exploration of their effects. The findings demonstrate that velocity values decrease as aneurysm size increases, associated with the drop in WSS. Results demonstrated how the wall deformation associated with the growth of CA aspect ratios causes strain and raises the danger of aneurysm rupture.

Original languageEnglish
Pages (from-to)31-45
Number of pages15
JournalJordan Journal of Mechanical and Industrial Engineering
Volume18
Issue number1
DOIs
Publication statusPublished - Mar 2024

Keywords

  • Cerebral Aneurysm
  • Computational Fluid Dynamics (CFD)
  • Transient Structure
  • Two-way Fluid-Structure Interaction (FSI)
  • Von-Mises stress
  • Wall shear stress

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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