How can we attach shell elements (6DOF) to solid elements (3DOF) in Ansys LS-DYNA® nonlinear dynamics structural simulation software?
Shell elements have 6 degrees of freedom per node (3 translational & 3 rotational) while solid elements have 3 (only translational) degrees of freedom per node hence, maintaining rotational continuity while attaching the two might be necessary. The examples given in the knowledge material demonstrate multiple methods of constraining shell elements to solid elements.
For additional details, please refer to the document below -