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Post-buckling does not converge
Posted 19 mag 2022, 09:19 GMT-4 Structural & Acoustics, Structural Mechanics 1 Reply
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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.
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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