Make the application of displacement as the first load step and the removal of the displacement as the second load step.Do the removal process also gradually (by using more sub steps).
your methodology is correct and you should not remove stress.The deletion of the displacement boundary...
Can you explain how you have removed the displacement?have you carried the analysis in two load steps?
The following journal papers may also be of use to you :
1.The residual stress intensity factors for cold worked cracked holes - P.M.G.P.Moreira et al
2.Effect of residual stress around...
The process of inducing the residual stress(ball drifting etc)can be simulated in ansys.You need to have the tested material property and a proper mesh (especially near the area of interest) to do it. I assume that you are referring to cold expansion of the hole.The drifting of the tool into the...
Hi everone,
I am trying to make a rough estimate of fatigue life of a hollow shaft under pure bending at a particular load level.The hollow shaft has a shoulder fillet. The minuimum outer diameter is 69mm and the maximum outer diameter is 72mm with a transition radius of 6mm.The thickness of the...
Thank you for the reply.As the material behaviour is non linear during plastic deformation,i have to rely on FEA only.
Also the input billet for the extrusion in this case is also a tube and not a bar.Typical size of the billet is a tube of OD 76mm and thickness of 6mm which has to be...
I am trying to do a finite element analysis ofcold extrusion process of a tube wherein the steel tube is reduced from a larger outer diamter to a smaller one by extrusion process.The tube is held stationary and the die is pushed into the tube for a particular length and then retrieved.I am...