Shell elements in Code-Aster

Amin LAK

Hello all,
I am new in Code-Aster (while having some years of experience in other FE software like Sofistik, ANSYS, etc).
I am trying to model a plated steel structure (imagine a steel bridge with orthotropic deck) in Code-Aster. To begin with, I made a simple mode of a cantilever beam modeled as a face of 100 mm high and 1000 mm long meshed with COQUE_3D elements, please see a link to the model below. Something is wrong in the model that when I run AsterStudy it gives an error message.
Can someone please open the model and advise on the mistake in my model?

Thanks a lot,
Amin
link to the model:
https://drive.google.com/drive/folders/1kSI0ART6xoI3ILvu3rURPvBKYLuBcrFz?usp=sharing

Amin LAK

AsterO'dactyle

Hello,

The COQUE_3D model uses quadratic geometric supports (TRIA7 or QUAD9).

You can ask your mesher (in salome/mesh, use Modification/Convert to/from quadratic) or directly in code_aster via the commands

meshLine = LIRE_MAILLAGE(FORMAT=‘MED’)

meshQuad = CREA_MAILLAGE(MAILLAGE=meshLine, LINE_QUAD=_F(TOUT=‘OUI’))

meshBiQuad = CREA_MAILLAGE(MAILLAGE=meshQuad, MODI_MAILLE=_F(TOUT=‘OUI’, OPTION="TRIA6_7"))