I did that I guess. The fibre was sliding over the matrix but it was getting deformed from the bottom which I certainly don't want. I have attached the pictures of that simulation, I think that should be the equivalent to two element test.

Should I make any change in the initial model which is giving me errors?

Also is there any ansys manual where the czm properties of BN interface is given so that I can double check the properties.

Thanks for your help