Output debonding stress problem

[abc123ali]

Respected ABAQUS users, I am simulating the cohesive zone modeling by using cohesive contact rather than using cohesive elements but when I provide the initial notch or crack inside the model the mises stress goes very high as if the point of debonding is facing the extreme bending but most of the models on youtube tutorials used this stuff. As far as the double cantilever beam model from the abaqus documentation is concerned, they applied a cohesive linear element as a crack tip while the remianing model has a cohesive contact so when this cohesive element fractures it becomes a crack tip for the remaning model fractures then with the inclusion of debonding s well as bending at the debonding point icreases stress to show red colour contrast compare to the whole model.
Is the inclusion of crack tip right or they create a result duality? Secondly debonding with inclusion of tip shows less stress at debonding point as well as the debonding contact nodes are as same as the nodes apart from it or the contour plot of contact elemets is same and uniform to the outer elemnts shows uniform stress distribution.

What should it be like at the point of contact? The inp file for the uniform stress distribution as well as the highly stressed elements are attached here as an input file. Are the high stress elements present because of bending or debonding? If due to debonding then why they are absent on the model of without crack?
There is a convergence issue in modeling with crack tip when the mesh goes fine. How to solve it? Here are the file attached

Thanks for cooperation

 

[FEA way]

As far as the double cantilever beam model from the abaqus documentation is concerned, they applied a cohesive linear element as a crack tip while the remianing model has a cohesive contact

Which case/input file name from the documentation d you mean here ?

The typical approach with cohesive contact is that only this CZM approach is used and initially bonded crack surfaces are defined using *INITIAL CONDITIONS, TYPE=CONTACT.