Shell-to-solid coupling

Surface-based shell-to-solid coupling:

  • allows for a transition from shell element modeling to solid element modeling;

  • is most useful when local modeling should use a full three-dimensional analysis but other parts of the structure can be modeled as shells;

  • uses a set of internally defined distributing coupling constraints to couple the motion of a “line” of nodes along the edge of a shell model to the motion of a set of nodes on a solid surface;

  • automatically selects the coupling nodes located on a solid surface lying within a region of influence;

  • can be used with three-dimensional stress/displacement shell and solid (continuum) elements;

  • does not require any alignment between the solid and shell element meshes; and

  • can be used in geometrically linear and nonlinear analysis.

The following topics are discussed:

Related Topics
Coupling constraints
In Other Guides
About surfaces
Defining shell-to-solid coupling constraints