| T2043 | FATAL ERROR: T2043 | INTERPOLATION ELEMENT id IS NOT PROPERLY DEFINED |
| Cause: | The specified RBE3 Bulk Data entry is not properly defined. The degrees of freedom listed for all points must be adequate to define rigid body motion. Each degree of freedom specified at the reference grid point must be able to be reacted by degrees of freedom defined at the connected grid points. | |
| Action: | Correct the Bulk Data entry or set the AUTOFIXRIGIDELEM model parameter to ON to automatically add rotational degrees of freedom. | |
| Remarks: | See Autodesk Nastran Reference Guide, Section 4, Bulk Data, for entry format. |