I have a little problem in performing the simulation of an autofrettaged pipe.
I need first to simulate the autofrettage pressure and thus the stress so created in the walls, and then to apply the working pressure.
The problem is that I am not able to apply the operative pressure into the yet deformed body.
Is there a way to prevent stress the body or imposing the initial conditions of stress and so on?
Thank you for your kind help to the matter