Abdominal aortic aneurysm (AAA), local dilations of the infrarenal aorta, is the 13th leading cause of mortality in US. Various tools have been used to investigate the effect of blood flow on the mechanics of AAA, which might predict its fracture potential, a life-threaten event. The modeling techniques are gaining popularity, including the partially or fully coupled fluid-structure interaction method (p-FSI and f-FSI, respectively) and the static computational solid stress (CSS) analyses. In the present study, comparison among the above mentioned three computational methods were performed to identify the effective means to characterize the effects of pulsatile turbulent blood flow on predicting the stress distribution on AAA. Results have shown that ignorance of blood flow in simulation will underestimate the wall stress calculation and the flexibility of aneurysm wall has a large impact in simulating the blood through the AAA.
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ASME 2013 International Mechanical Engineering Congress and Exposition
November 15–21, 2013
San Diego, California, USA
Conference Sponsors:
- ASME
ISBN:
978-0-7918-5621-5
PROCEEDINGS PAPER
Effects of Turbulent Blood Flow on Abdominal Aortic Aneurysms: A Fluid-Structure Interaction Study
Shengmao Lin,
Shengmao Lin
University of Nebraska-Lincoln, Lincoln, NE
Search for other works by this author on:
Linxia Gu
Linxia Gu
University of Nebraska-Lincoln, Lincoln, NE
Search for other works by this author on:
Shengmao Lin
University of Nebraska-Lincoln, Lincoln, NE
Linxia Gu
University of Nebraska-Lincoln, Lincoln, NE
Paper No:
IMECE2013-63879, V03AT03A062; 4 pages
Published Online:
April 2, 2014
Citation
Lin, S, & Gu, L. "Effects of Turbulent Blood Flow on Abdominal Aortic Aneurysms: A Fluid-Structure Interaction Study." Proceedings of the ASME 2013 International Mechanical Engineering Congress and Exposition. Volume 3A: Biomedical and Biotechnology Engineering. San Diego, California, USA. November 15–21, 2013. V03AT03A062. ASME. https://doi.org/10.1115/IMECE2013-63879
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