Chapter 12: Debonding

The debonding capability refers specifically to separation of bonded contact. It can be used to simulate interface delamination where the interface is modeled using bonded contact with the augmented Lagrangian method or the pure penalty method. A cohesive zone material must be used to define the traction separation behavior of the interface. The following contact elements support debonding: CONTA171, CONTA172, CONTA173, CONTA174, CONTA175, CONTA176, and CONTA177.

An alternative method of modeling interface delamination is to use interface elements with a cohesive zone material (see "Interface Delamination and Failure Simulation"). However, debonding with contact elements has the following advantages over delamination with the interface elements:

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