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Contact2D

2D Node(Slave)-Line(Master) Contact Element

Syntax

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element Contact2D (1) (2) (3) [4]
# (1) int, unique element tag
# (2) int, master group tag
# (3) int, slave group tag
# [4] double, penalty factor

Remarks

  1. The contact algorithm is implemented via penalty function method as an element. The parameter [4] controls the magnitude of penalty.
  2. No matter whether the nlgeom switch is on or off for connected elements, the contact detection itself is always conducted in a nonlinear manner, similar to the total Lagrangian formulation.
  3. The node-line contact detection is performed for all nodes defined in slave group and lines defined by nodes in master group. There are \(n-1\) line segments for \(n\) nodes in master group.
  4. Master nodes can penetrate lines formed in slave group. To prevent this, define a new Contact2D element by swapping the order of slave and master groups.
  5. Example usage can be seen in the example.