Menu

Discussion Forum

New Discussion
Filter

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Self-contact

Posted Aug 3, 2018, 4:21 a.m. EDT 1 Reply

Valery Anpilov
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Dear colleagues, please let me know: Is COMSOL capable of contact modeling with self-intersections? Regards Valery

1 Reply Last Post Aug 7, 2018, 8:31 a.m. EDT
Henrik Sönnerlind COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 6 years ago Aug 7, 2018, 8:31 a.m. EDT

Hi Valery,

This is formally not supported, but if you can live with a few quirks, it is possible. Just select the same set of boundaries as source and destination in the contact pair.

The local stress solution at the contacting boundaries may not be that accurate (since you have to violate the criterion that the destination side mesh should be finer than that on the source side).

Also, the contact pressure evaluation is tricky (part of it will appear on each side).

But as long as you are only interested in avoiding that something folds onto itself in a more global sense, it is quite useful.

Regards,
Henrik

-------------------
Henrik Sönnerlind
COMSOL
Hi Valery, This is formally not supported, but if you can live with a few quirks, it is possible. Just select the same set of boundaries as source and destination in the contact pair. The local stress solution at the contacting boundaries may not be that accurate (since you have to violate the criterion that the destination side mesh should be finer than that on the source side). Also, the contact pressure evaluation is tricky (part of it will appear on each side). But as long as you are only interested in avoiding that something folds onto itself in a more global sense, it is quite useful. Regards, Henrik

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content