Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
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.
trying to connect two plates with a hinge joint on Comsol 4.3a
Posted 09.04.2014, 11:34 GMT-4 Structural Mechanics Version 4.3a 0 Replies
Please login with a confirmed email address before reporting spam
My school version of Comsol is the 4.3a.
The idea is to modelize a folded sheet of paper.
As a first step to get to know comsol, I wanted to model two solids (blocks) connected with a hinge joint by their edges. I declared 2 rigid domains corresponding to the two solids. I fixed a face of one of the two solids and defined a body load to model the weight. And then tried every model possibilities I could think of. ..
Every time the solver would give an error at one of the face near the hinge joint or at the fixed constrained face.
Regular error is that the mean operator cannot compute because the surrounding domain needs to be of higher dimension.
Another one is a Jacobian matrix with NaN or infinite value on the dof near hinge joint.
Another one isa problem in definition of the constraint Jacobian matrix .
My guess is that all these errors are actually the same and that I don't get how to model a hinge joint.
Do you have a wild idea about what may be the problem ??
Thanks a lot !
Clémentine
Hello Clémentine Pradier
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.