Inter-Element Continuity
Rotation () is Continuous


The rotation is continuous within each element. Furthermore, since adjacent elements share nodes, the rotation must also be continuous through the mesh. The sharing of nodes enforces element continuity by requiring that the rotation of adjacent elements be the same at the shared node and therefore continuous through the element interface. This means that a plot of the rotation will be continuous and not have any gaps or overlaps, such as in the figure below with shared node 2. It should be noted that in order to enforce element continuity, the nodes at element interfaces (such as node 2 in the figure below) must be shared. If each element has a separate node at the interface, then each element could also have a different slope and a gap or overlap could result in the structure.