Build Aortic Aneurysm from stl segmented images

[Sergio Blanco]

Dear all,

I am trying to build a volume model from stl images I've got from segmentation. I have the three layers of my domain (internal blood, middle interal wall and external wall). You can see the photo. I need to build a model with two volumes (one defined by the inner and middle surface and the other defined by the middle and outer surface). I am not able to build the volumes (it seems I am not able to build a closed contour defined by surfaces). I am using Ansys Discovery. The three surfaces are patch bodies I have built from the faceted stl images.

Any help about the procedure, or any link to a video will be much appreciated.

Best regards,

Sergio