Hello!
I've been trying to model bond slip between rebar and concrete in a 2d model in Abaqus with little luck thus far. I decided to try in a simpler model than I had from the start, just a very simple test of a reinforcement bar being pulled out of concrete, to see if I could get it to work. I've attached an image to illustrate my test.
I decided to try contact cohesive interaction to try to model bond slip behavior. I have established a contact interaction between the the rebar and the concrete. However, I don't think the cohesive behavior is quite right. I would like to model the cohesive behavior to follow a certain Bond stress-slip curve (I've attached another image to illustrate) but I don't understand how to input it properly into Abaqus.
If someone has an idea and would be so kind as to explain, I would greatly appreciate it.
I've been trying to model bond slip between rebar and concrete in a 2d model in Abaqus with little luck thus far. I decided to try in a simpler model than I had from the start, just a very simple test of a reinforcement bar being pulled out of concrete, to see if I could get it to work. I've attached an image to illustrate my test.
I decided to try contact cohesive interaction to try to model bond slip behavior. I have established a contact interaction between the the rebar and the concrete. However, I don't think the cohesive behavior is quite right. I would like to model the cohesive behavior to follow a certain Bond stress-slip curve (I've attached another image to illustrate) but I don't understand how to input it properly into Abaqus.
If someone has an idea and would be so kind as to explain, I would greatly appreciate it.