cbush (spot tie)
Creates bush (CBUSH) elements between shell and/or solid elements in order to connect them using a tie contact definition. The bush element nodes will project and touch the shell and/or solid element faces. During the realization, a default tie contact and referencing main and secondary sets are created; unless defined differently, the bushs are assigned a default property, and are organized into a component with the same name base as the property. If no specific bush coordinate system is defined, the bush elements are defined with a vector x1, x2, and x3 normal to it.