Contact Theory/Maths Documentation?
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report
Hello @John_Holtz, @KubliJ and community,
John and James, I'm mentioning you because I've seen you help a lot in the forum and maybe you can help me faster.
Where can I find the theory documentation (math equations and explanation of what's happening "underneath the hood") for the contact modeling?
I've found some guides already in the link below (Solver User's Manual and NonLin Handbook), but none of them shows the actual equations neither the mathematical hypothèses the contact elements are using to solve the models. Is there any other reference document where we can look at the math model for contact surfaces?
Unfortunately (I've checked a lot of them), the tutorials and user guides don't help me because I know how to create the contacts and how it works in theory, but I want a math explanation as to why they don't work properly in my simulation or why they present the "hotspot" zones in the contact surfaces.
I'm using Inventor Nastran 2022 and I've done some exhausting work dealing with contact zones to perform a press-fit/interference-fit analysis. First with shrink-fit contacts and separation contact, but right now I'm struggling with simple separation contact events. Even trying every tip you gave here in the forum for different problems, I'm still couldn't find good and physically possible results to the contact zones (homogeneous and feasible results with no singularities).
All the results for contact surfaces create "hotspot" zones that invalidate the Stress/ContactPressure analysis and unfortunately, the region of interest in my case is the region of contact.
Thanks in advance,
Best regards,
