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Advances in Nano Research Volume 13, Number 4, October 2022 , pages 379-391 DOI: https://doi.org/10.12989/anr.2022.13.4.379 |
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Impact of the geometric properties of intracranial vascular bifurcation and the mechanism of aneurysm occurrence and rupture |
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Jun Liu, Qingyun Zhang and Hua Chen
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| Abstract | ||
| One factor that can heighten the risk of the rapture intracranial aneurysm (IA) is bifurcations, which can cause the IA to evaluate. This study presents the effect of geometric of intracranial vascular on the bifurcation analysis of the aneurysm occurrence. The aneurysm mechanism is mathematically modeled based on the nano pipe structures under the thermal stresses, and the impact of the aneurysm geometric on the stability and bifurcation points is analyzed. Because of the dimension of these structures, the classical theories could not predict their behavior perfectly, so the nonclassical and nonlocal theories are required for the mechanical modeling of the aneurysm. The presented results show that the bifurcation point of the aneurysm mechanism is dependent on the environment temperature, and the temperature change plays an essential role in the stability of these structures. | ||
| Key Words | ||
| aneurysm mechanism; bifurcation; buckling behavior; dynamic characteristics; mechanical analysis | ||
| Address | ||
| Jun Liu: The Second Affiliated Hospital, Wannan Medical College, Wuhu 241001, Anhui, China/ Vascular Diseases Research Center, Wannan Medical College, Wuhu 241001, Anhui, China Qingyun Zhang: Ma An Shan General Hospital of Ranger-Duree Healthcare, Maanshan 243000, Anhui, China Hua Chen: The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, Jiangsu, China | ||