ArticleComputer methods in biomechanics and biomedical engineering2018
Fluid-structure interaction modeling of aneurysmal arteries under steady-state and pulsatile blood flow: a stability analysis.
Article in Computer methods in biomechanics and biomedical engineering, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- New Trends of Personalized Medicine in the Management of Abdominal Aortic Aneurysm: A Review.Journal of personalized medicine · 2024Review
- Modeling Dynamics of the Cardiovascular System Using Fluid-Structure Interaction Methods.Biology · 2023Review
- Study of Non-Newtonian biomagnetic blood flow in a stenosed bifurcated artery having elastic walls.Scientific reports · 2021Article
- Arterial pulse wave propagation across stenoses and aneurysms: assessment of one-dimensional simulations against three-dimensional simulations andJournal of the Royal Society, Interface · 2021Article
- Biomechanical Force Prediction for Lengthening of Small Intestine during Distraction Enterogenesis.Bioengineering (Basel, Switzerland) · 2020Article
- Computational simulations of the helical buckling behavior of blood vessels.International journal for numerical methods in biomedical engineering · 2019Article
- Geometric determinants of local hemodynamics in severe carotid artery stenosis.Computers in biology and medicine · 2019Article
- Patient-specific Computational Hemodynamic Analysis for Interrupted Aortic Arch in an Adult: Implications for Aortic Dissection Initiation.Scientific reports · 2019Article
- Clinical validation and assessment of aortic hemodynamics using computational fluid dynamics simulations from computed tomography angiography.Biomedical engineering online · 2018Article
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Authors and funding
3 authors.
Funding
Abstract
Tortuous aneurysmal arteries are often associated with a higher risk of rupture but the mechanism remains unclear. The goal of this study was to analyze the buckling and post-buckling behaviors of aneurysmal arteries under pulsatile flow. To accomplish this goal, we analyzed the buckling behavior of model carotid and abdominal aorta with aneurysms by utilizing fluid-structure interaction (FSI) method with realistic waveforms boundary conditions. FSI simulations were done under steady-state and pulsatile flow for normal (1.5) and reduced (1.3) axial stretch ratios to investigate the influence of aneurysm, pulsatile lumen pressure and axial tension on stability. Our results indicated that aneurysmal artery buckled at the critical buckling pressure and its deflection nonlinearly increased with increasing lumen pressure. Buckling elevates the peak stress (up to 118%). The maximum aneurysm wall stress at pulsatile FSI flow was (29%) higher than under static pressure at the peak lumen pressure of 130 mmHg. Buckling results show an increase in lumen shear stress at the inner side of the maximum deflection. Vortex flow was dramatically enlarged with increasing lumen pressure and artery diameter. Aneurysmal arteries are more susceptible than normal arteries to mechanical instability which causes high stresses in the aneurysm wall that could lead to aneurysm rupture.
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