Wire extrusion

The ALE formalism is used for simulating this stationary process.

The mesh is Eulerian (every nodes are moved back to their initial position after each step). This avoids to consider a very large Lagrangian mesh.

The problem is axisymmetric.

The wire is pulled from the top through a rigid die.

The penalty method is used for the contact between the die and the wire.

After a brief transient state, the stationary state is reached.