Expand structure in ABAQUS

[Leonor]

Hey there!

I have an ellipsoid structure that is empty inside (I only have its outer layer) and I want it to pressure a tube structure next to it. I was told to apply a pressure on the inside part of the ellipsoid (it is not completely closed so I can easily access its inside part) to simulate its growth and so it can smash the tube next to it.

How can I apply such pressure? Is there any type of specific pressure to do this?

Thanks a lot!

 

[FEA way]

Can you share a picture showing this model ? What kind of structure is that and how does the process look like in real life ?