I developed one contact model (11141-3_FEA-FOF_3.fs2) with displacement control that runs fine until the compression appears to distort and element and generate a negative jacobian. I start with the parts distracted and move them into position during two steps, because it failed to converge with everything in contact at the beginning. I developed a second model (Split_PS_FOF-Contact_NoGrowth_11141-3), based on the same geometries, except that I split two of the prior parts. So the final mesh/geometry is not exactly the same, but very close. I believe I have used all the same material properties, BCs and contact parameters. However, the second model fails to converge on a single time step, well before there is actually any surface contact. Perhaps there is an instability in both models, but I can't find it and the first model solves reliably. Any help/suggestions would be appreciated.
Here is a link to the files: https://drive.google.com/drive/folde...vc?usp=sharing
Thank you.
Here is a link to the files: https://drive.google.com/drive/folde...vc?usp=sharing
Thank you.
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