Erik Kostson
Ansys Employee






See the LS-Dyna manual on elform=2 (4 node or 3 node shell element)

In the cdb file you have quadratic shells (so 6 node and 8 node), hence the error message.

To use quadratic shell in Dyna we need elform=23, which Dyna sets automatically at least in release 2023 R1 (latest).

Try and use 2023 R1.


if the issue is still there, then either mesh with linear shells (shell181) in apdl, and then it should work with elform=2.


All the best