Contact Algorithms

Small-Displacement Formulation

• • Node-to-node hard-contact formulation (condensed Lagrangian multipliers)

  • Joint link-elements

  • Boundary constraints in local reference system 

Large-Displacement Formulation

• • Slave soft-contact (penalty formulation)

  • Non-coincident surface meshes

  • 2D/3D formulation

  • One-pass or two-pass algorithm

  • Master-slave soft-contact (augmented Lagrangian formulation)

  • Non-coincident surface meshes

  • 2D/3D formulation

  • One-pass or two-pass algorithm