Hi everyone, I'm working with CDP model in Abaqus. I know law tension of concrete, I was add it in CDP Model (Line gris and yellow - it look great example).

But I want to change this law (try to fit line orange with blue). I was tried with strain-rate dependent data, it work but this way for retardation strain not use to increase strain rate.

So what should i do with field variable ?

Ps: I must fix yield stress and cracking strain in CDP.

Thank you so much.