What is the expectation when this separation begins in the physical part? Could it be that the nonconvergence is indicative of a physical instability? What is the extent of the CZM separation?
Can you postprocess the ETAB results for the CZM parameters DTSTART, DPARAM, DENERI, DEMERII and DEMER ? See Table 174. 2 of MAPDL Elements Manual and the ETABLE command docs for more details.
It is difficult to say more without seeing the whole model and all the relevant details.
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