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.

Post-buckling does not converge

Please login with a confirmed email address before reporting spam

Hello, everyone I am trying to do a simulation about the post-buckling of a cylinderical shells subjected to axial compression by nonlinear steady-state analysis. But when calculated near the buckling load, the results do not converge, so that post-buckling results cannot be obtained. I want to know how to get the complete load displacement curve as we use the riks method in ABAQUS.


1 Reply Last Post May 19, 2022, 10:31 a.m. EDT
Henrik Sönnerlind COMSOL Employee

Please login with a confirmed email address before reporting spam

Posted: 2 years ago May 19, 2022, 10:31 a.m. EDT

A good place to start is to look at these models:

https://www.comsol.com/model/postbuckling-analysis-of-a-hinged-cylindrical-shell-10257
https://www.comsol.com/model/spherical-cap-with-central-point-load-67161

-------------------
Henrik Sönnerlind
COMSOL
A good place to start is to look at these models:

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.