Thank you very much for your reply.
I have another question. I would appreciate if you please answer this.
In ATENA Engineering 3D, while modelling HSC column I modelled cover of concrete as separate macro element. I used separate material model for cover concrete. The model is running fine but giving higher peak load than experiment. HSC column seldom reach theoretical capacity due to early cover spalling. The cover spalls out due to tensile strain in x- direction (radial direction).
In my model I am trying that the cover should be separated from core concrete when certain tensile strain is reached. It will reduce the cross sectional size and hence the capacity.
Is it possible to separate a particular macro element while a desired strain/ stress is reached?
Thanking you in advance.
Regards