How to expand one solid body inside another solid body?
I want to open an artificial valve inside an aortic valve. But before that I am trying to open (push) the leaflets with a cylinder (images are attached).
The material assigned to leaflets and the middle cylinder is Polyethylene. I want to assign air to root but ANSYS shows an error that Elasticity is required (while Air has no elasticity).
Contacts -- A frictionless contact was used between the cylinder and the leaflet
The faces where leaflets are attached to the root have fixed supports
Cylinder has a displacement support.
I assigned different materials to the root, but the simulation stops at the start. Any idea how to expand one solid body inside another solid body?