We aren't allowed to comment on specific cases in this forum, but you may want to review the implicit guidelines for LS-DYNA here:
https://www.dynasupport.com/howtos/implicit
https://www.dynamore.de/en/downloads/presentations/2015/download-informationstag-Implizit-2016/05-2016-02-dynamore-infotag-implizit-tipstricks.pdf
You are navigating away from the AIS Discovery experience