Hello everyone,
I am trying to model a cylindrical structure with very thin layers. The aspect ratio is thus in any case bad, since the elements in circumferencial/axial direction (up to 1 mm x 1 mm) have much higher dimensions than in thickness direction (e.g. 0.05 mm). Otherwise, the model would be extremely big and calculation time would be an issue. Even thinner layers (0.01 mm) are modelled as shells.
In dynamic, explicit simulations I am facing contact issues. The contact just fails. I am running with SOFT=2 and SOFSCL=0.1. Have tried many others without success. I have attached the model and the main file.
I could switch the thinnest layers, that are currently shells, to solids. Thus calculation time would further increase and aspect ratio is even worse, but for contacts it might be beneficial.
Does anyone have a suggestion how to improve the contacts to be more robust?
Regards
Richard
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