A stent is a mesh tube that is used to push against arterial walls with the help of a balloon so that the blockages to the blood flow in the arteries can be removed. Many different stent designs exist on the market today and each one with its own unique geometry and application conditions. This analysis demonstrates the deployment process for an arterial stent modeled in Abaqus using an elastic-plastic analysis.
The physics involved in the simulation are complex and can be summarized as follows:
- Contact between the stent and blood vessel, between the stent and a balloon etc.
- Stent boundary conditions that must be defined as per the service conditions and loading cycles.
- Large expansion deformation.
- The stent material is non-linear and needs to be fully defined for the material and design to be properly validated.