Skip to content

Embedded regions

*Embedded region, <method>

Embedded regions couple guest elements to a continuum host without requiring a conforming mesh.

  • absorbed: perfect kinematic following. Guest degrees of freedom are prescribed from the host interpolation, and the guest elements do not contribute mechanical stiffness.
  • interaction: line coupling for trusses or beams. Distributed axial and lateral interface springs are integrated along the guest centreline. Typical applications are anchors, nails and very slender inclusions.
  • interaction-surface: three-dimensional beam coupling on an implicit cylindrical shaft surface and optional base disk. The formulation includes beam rotations, unilateral separation, tangential sliding, selectable capacity-pressure sources, nonlinear base mobilisation and an optional elastic ghost zone.

The Theory Manual describes the common host search and the mechanical assumptions of each method.