When I run a Cohesive Zone Material Model (CZM) analysis in ANSYS version 11.0SP1, the surfaces remain bonded and fail to separate sine the material table data (TBDATA) assigned to the contact element is material #1. If the material assignment for contact is changed to a number >1, then it runs as expected. Is this a bug?

This is a limitation that has been trapped at version 12.0 and instructs the user to change the material number to something other than 1.

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