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Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › Divergent hourglassing model near bolt holes using Cohesive zone material › Reply To: Divergent hourglassing model near bolt holes using Cohesive zone material

June 28, 2023 at 9:11 pm
John Doyle
Ansys Employee

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.