The Effect of Bending Load for Two Geometries of AISI 316L Cardiovascular Stent

Abstract

In the present study, Abaqus finite element modelling was used to explore the durability of cardiovascular stent made of AISI 316L under bending loading. In order to achieve this purpose, two geometries of stent are explored: the U-shaped and Ω-shaped stent. The cyclic loading of blood pressure doesn’t cause fracture. This result was confirmed by many studies. However, when subjected to bending loading the stent was found to experience an inservice failure. The last proved to the artery movement and depends on the increase of bending loading. However, the Ω-shape stunt permits a better distribution of load than the U-shape one.