A comprehensive iterative design, simulation and finite element analysis of bare metal stent and diseased artery
Fatigue is a material failure due to cyclic forces acting upon said material. Fatigue can make the material fail before the stresses reach ultimate tensile strength or fracture strength. Intravascular coronary stent are subjected to cyclic loads when placed in vivo. Once in a coronary artery, stents are loaded with systolic and diastolic pulse pressures. The purpose of this research entitled "A comprehensive iterative design, simulation and finite element analysis of bare metal stent and diseased artery" will study the impact of cyclic load on a stent geometry. This research will obtain information from a parametrically designed coronary stent, which used SolidWorks design software to create three-dimensional geometry of the stent. Abaqus finite element analysis software will be used to simulate in vivo artery conditions. It will also be used to crimp the stent models and then deploy them within the artery. The stent fatigue will be analyzed using Fe- Safe, an add-on in Abaqus. Different stent geometries for two different material will be analyzed.
Thesis (M.S.)--Wichita State University, College of Engineering, Dept. of Mechanical Engineering