FEA simulation - Type of Contacts?

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report
Hello everyone,
I'm doing an FEA simulation and I'm confused about the type of Contacts I'm supposed to have.
I haven't been able to find a lot of documentation online that would really explain how each type of contact works.
From what I've read I was able to change my Contacts a little bit. This is how I have established them in general:
- All my holes have clearance so they are slightly larger than the fasteners. I have used Separation between the fasteners and the holes.
- Since the plier needs to be able to open and close its jaws, parts A, B, C1, C2 and Holder need to be able to slide but I don't want them to separate, so I have used Sliding/ No Separation.
- The holder also needs to slide but there's a small distance between it and parts C1 and C2, so I used Separation.
- Used Bonded contact between the nuts and the fasteners.
- Used Bonded contact between Part B and Top Grip, and Part A and Bottom Grip.
When I ran my simulation a lot of the pieces separated from each other. My bolts didn't stay in place at all, so my VM stresses were really really high, which I don't think is accurate.
I have uploaded my files here:
I would like to mention that I have a separate file that includes threads. I wasn't able to exclude the threads from the study so I created this file without threads to minimize simulation time.
Any guidance or additional information about contacts would be greatly appreciated!
Thank you.
- Juanita S.