Learning Forum

[kaushal.21910939]

Hello Ansys users,

currently I am working on static structural analysis of a double ferrule pipe fitting, Initially I had boundary condition of displacement which is given to the nut in the assembly. That run was successful, but after that, boundary condition was updated and I got values of force instead of displacement. Keeping all other boundary conditions same, I applied the force values instead of displacement and after that the simulation started to behave weirdly. The nut is somehow flying away from the assembly in the opposite direction. I tried giving frictionless supports to the nut so it doesn't fly away but still encountering same problem. I am attaching some snaps from the run and the project archive as well.

Displacement Boundary condition:

[Erik Kostson]

Hi It is very often that displacements give much better convergence in nonlinear FEA than applied forces do, so I would stay with that displacement.

You can see the applied force by inserting a reaction result scoped to that that applied displacement (set to location method -> boundary condition, and location method ->Displacement).
Or it is a simple as dragging the displacement object, down to the Solution/Results on the tree in the mechanical user interface.



All the best