Note: This discussion is about an older version of the COMSOL Multiphysics®software. The information provided may be out of date.
Discussion ClosedThis 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.
Traction does not converge
Posted 2014年8月6日 GMT+2 12:40Heat Transfer & Phase Change, Structural MechanicsVersion 4.41 Reply
Please login with a confirmed email address before reporting spam
Hallo everyone,
I'm trying to model thermal stress in a glas plate caused by a solder drop with a initial temperature. The problem is that the traction does not converge with finer mesh, it gets bigger and bigger after refining the mesh.
I'm doing a time dependant, 2D axissymmetric study.
I would appreciate your help.
Thanks
Max
I'm trying to model thermal stress in a glas plate caused by a solder drop with a initial temperature. The problem is that the traction does not converge with finer mesh, it gets bigger and bigger after refining the mesh.
I'm doing a time dependant, 2D axissymmetric study.
I would appreciate your help.
Thanks
Max
Attachments:
1 Reply
Last Post 2014年8月11日 GMT+2 17:12
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi Max,
I believe there is a stress singularity at the edge between the drop and the plate due to the discontinuity in the initial temperature. That is why reducing the mesh size results in higher stresses.
Nagi Elabbasi
Veryst Engineering
I believe there is a stress singularity at the edge between the drop and the plate due to the discontinuity in the initial temperature. That is why reducing the mesh size results in higher stresses.
Nagi Elabbasi
Veryst Engineering