Hi Mike

I made some changes in the model,

I chose mode 2 in separation-distance based debonding for czm properties.

Calculated the max eq tangential contact stress by F/A. The max force I want is 56mn and calculated area of the fibre surface on which I applied displacement.

Tangential slip at completion of debonding I just took from an experiment ( still don't know if I should change it or not).

I got these results with the changes I made.

I gave 0.9 um displacement to the fibre in negative Y direction.

Now I want to add stiffness to the bond and I want the fibre to slide after the bond breaks. How can I do that? Because the fibre goes back to the original position after the displacement is 0.

Also the methodology I followed now, is this in the right direction?

Thanks for your help