Use the Prescribed Mesh Displacement node on the boundary of domains with free deformation. The spatial frame in the adjacent domain moves in accordance with the displacement.

For boundaries adjacent to domains where displacement variables are defined, for example domains where a Solid Mechanics interface is active, let these variables drive the mesh displacement by typing the component field names in the corresponding fields (for example, setting dx to u, dy to v, and dz to w in 3D).

To display this section, click the Show button () and select Advanced Physics Options. See Common Physics Interface and Feature Settings and Nodes for links to more information.