Hi

I am a self learner in Simulation, have been trying out ways I could use simulation to anticipate how objects are bent, stressed.

I used curvature based mesh quite oftenly because it can solve faster with more elements compared to standard based mesh.

However I just could not get curvature based mesh to work with a contact set of non penetration. But once I switch to standard based mesh, eveything seems working.

I need to ask fellow users of Simulation, is this a bug or something I have not done correctly?

I am using SW2010 Simulation

Note that the 3 buttons are not bonded to the upper flat bar, it has very small gap. I used contact set non penetration between the surface of each button and the face of the flat bar facing down.

Then my fellow engineer told me if I were to make curvature mesh works with non- penetration, I got to reduce the surface of the contact set of the flat bar by creating split lines. So I did a 3 circular splitsfor each button on the flat bar. To my surprise it worked!!

So my next question is, why it worked and how do I define small area? Is there other way I could have make it work with non-penetration contact set?

I would be delighted to hear any kind advice.

Thank you