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What can I do if the direction of the pressure is not reasonable after the mesh had been refined adaptively?

When I used adaptive mesh in hydro forming simulation, there was no problem in the initial stage. However, I found that the direction of the pressure wasn’t reasonable after the mesh had been refined adaptively. What was the problem and how can it be fixed?

Adaptive method can be used in hydro forming analysis. Some problems may occur if the input is not properly set up using * LOAD_SEGMENT_SET.

The adaptive mesh will have the same normal as the original mesh, while if the normal of the original element and the defined segment are not the same, the adapted element still have the same as the original elements, and the pressure will be applied in the wrong direction.

Make sure that the segment normal coincides with the original mesh normal if adaptivity is used.