{"id":162803,"date":"2021-10-05T10:22:21","date_gmt":"2021-10-05T10:22:21","guid":{"rendered":"\/forum\/forums\/topic\/convergence-problems-nonlinear-shell-modell\/"},"modified":"2021-10-06T06:00:46","modified_gmt":"2021-10-06T06:00:46","slug":"convergence-problems-nonlinear-shell-modell","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/convergence-problems-nonlinear-shell-modell\/","title":{"rendered":"Convergence problems nonlinear shell modell"},"content":{"rendered":"
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Hello everybody,<\/p>\n

I try to simulate flexural buckling of box-shaped steel columns and therefore modelled an shell structure for a nonlinear analysis in ANSYS APDL. It has initial stresses applied. The geometry and initial stress application seem to work out fine but when I try to solve the problem it does not converge. Even using more substeps seems not to help. I attached my model in this post. <\/p>\n

I suspect a problem with the settings for the nonlinear solution but can´t figure out, how to set things right so the model would converge. <\/p>\n

Thanks a lot for your suggestions!<\/p>\n

Aspila<\/p>\n

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\nBoxColumn.txt
\n<\/a><\/p>\n","protected":false},"template":"","class_list":["post-162803","topic","type-topic","status-closed","hentry","topic-tag-ansys-student","topic-tag-convergence","topic-tag-mechanical-apdl","topic-tag-static-structural"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t