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

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.