Description: The structural coupling method can be used in either fastener or distributed coupling definitions. It couples the translation and rotation of each attachment (reference) point to the translation and the rotation motion of the associated group of coupling nodes on the fastened or constrained surface. The constraint distributes the forces and moments at the attachment (reference) points as forces and moments at the coupling nodes. The kinematics of the new coupling method are such that it avoids unrealistic contact interactions when shell surfaces are fastened together. In addition, it provides a more realistic (more compliant) behavior in both bending and peeling of fastened shells.