Hello, 

I try to launch a simulation with a UEL subroutine, and I would like to impose a radial displacement, so I introduced :

**  
*Nset, nset="_T-Coordonnees cylindriques", internal
Stent-1.Stent_complet, 
*Transform, nset="_T-Coordonnees cylindriques", type=C
         0.,           0.,           0.,           0.,           0.,           1.
*End Assembly

** BOUNDARY CONDITIONS
** 
** Name: Gonflement Type: Displacement/Rotation
*Boundary
Stent-1.Stent_complet, 1, 1, 1.275
** 

I launched the simulation with B31 elements first, no problem. But whenever I try with my User elements, I have the error message:

:---------- RUNTIME EXCEPTION HAS OCCURED ----------

standard.exe / rank 0 / thread 0  encountered a system exception 0xC0000005 (EXCEPTION_ACCESS_VIOLATION)           

If I remove the cylindrical coordinates transformation, the problem disappears.

Does anyone have any ideas?

 Thank you very much
Edu