Physics Setup - Lesson 5

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;

 

    • ┬áInsert > Frictionless Support
      • Select the three faces of Symmetry