Add a Face Load subnode under a
Crack node to describe a load acting on a crack face. In some cases, a
Boundary Load can be used to the same effect. If, however, a J-integral is to be computed, and it encloses a loaded part of the crack face, then the load must be described using the
Face Load node.
Enter the Crack face pressure,
p. The pressure is applied to both faces of the crack.
Physics tab with Crack node selected in the model tree: