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Constant cavity volume

Constant cavity volume

(OP)
Dear all,

I am trying to simulate cardiac contraction for a left ventricle. I want have to keep the cavity volume constant for my simulation.
I have read alot of documentations for tyre simulation in abaqus where they give a constant volume for internal air part but no success to find inp example to understand how you can give such boundary conditions.

Anyone can give me some hints where can I find such info?
Any help is very welcomed,

RE: Constant cavity volume

(OP)
Thanks alot!
I am going to check it out! for now I had a look on the boundary condition fluid cavity to see if I can consider a fluid inside without adding a new mesh.

Regards

RE: Constant cavity volume

(OP)
Thank you very much,
I have a complicated mesh(hexahedron). For now, I am trying to figure how I can close my surface directly in abaqus.

Regards,

RE: Constant cavity volume

(OP)
Dear Icebreaker!

The phase I am trying to simulate is called isovolumic contraction, means the moment where the valves are closed and the muscle contraction starts to a certain stress. When the pressure inside the ventricle reaches to about 10kPa valves open and contraction continues more strong to reach 16kPa.
Thats what I am trying to do but I cant close my mesh while it was empty (the cavity) from beginning.

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