Topic: Linear Softening Based on Local Strain
I'm trying to model in Atena 2D a RC beam reinforced flexurally with FRP. I'm using an Sbeta constitutive for concrete.
I have noticed a better approximation with experimental data when I use Linear Softening Based on Local Strain for concrete in tension, however I'm not sure why would this be.
Also, I would like to be sure what "softening parameter 3" in Linear Softening Based on Local Strain stands for. Is it a strain c3 shown in Figure 2-7 in Atena theory?