Dear friend 

I want to model  crack propagation in a anisotropic beam with VCCT method, and also get Load-Deflection diagram , but unfortunately I couldnt becuase   I can define any bondig and debonding area and I dont know how can I do it...

I knew that there is some keywords about bonding and debound, but My  problem is I dont Know how can implement these keyword to my model....please help me and if you can show that visually.

Best Regards 

Sepehr