Hello,
We have a moderately large model with many contacts.
The contacts are required to get the correct force system into some of the components.
Simpler component models just don't get close to a real answer.
We build the models with no mesh refinments and get them to run. They run ok (in a short-ish time), behave intuitively and freebody loads add up.
Then, to get better stress estimates in certain components we add mesh refinements to the component(s), wait for a free weekend and run a big model. (we don't have submodelling in Mechanica/Creo)
Components that we originally constrained by contacts and light springs seem to 'lose' the contact and pass through adjacent parts in a manner which completely defies the contact definition.
Any thoughts?
Thanks