Physics Setup

Text Summary of the Above Video:

Specify Material
- Under Geometry, select 'Stent'
  - Assignment: Structural Steel
- Under Geometry, select 'Balloon'
  - Assignment: Balloon
Connections > Contacts > edit the automatically generated contact
- Contact: Select the bottom surface of the Stent body
- Target: Select the surface of the Balloon body
- Target Shell Face: Select 'Top'
- Shell Thickness Effect: Select 'Yes'
- Type: Frictionless
- Behavior: Asymmetric
- Formulation: Augmented Lagrange
- Detection Method: Nodal-Projected Normal From Contact
- Penetration Tolerance: Value
  - 1e-3 mm
- Normal Stiffness: Manual
- Normal Stiffness Factor: 1e-4
- Update Stiffness: Each Iteration
- Pinball Region: Radius
- Pinball Radius: 3e-2 mm
- Interface Treatment: Adjust to Touch

Text Summary of the Above Video:

Create a Polar Coordinate System for Balloon expansion
- Select Coordinate system > Insert > Coordinate System
- Geometry: Select the Balloon
- Type: Cylindrical
- Rename to Polar
Static Structural
- Analysis Settings
  - Number of steps: 2
  - Initial Substeps: 200
  - Min. Substeps: 20
  - Max. Substeps: 1e5
  - Large Deflection: On
- Insert > Displacement
  - Geometry: Select the Balloon face
  - Coordinate System: Polar (created above)
  - X Component: Tabular Data;