Drawback with concrete stress-strain diagram
Posted: Sun Jun 28, 2020 11:56 pm
Hi!
As I mentioned before, I was working in a model with distribuited plasticity using fibers. In the input data, I defined the
following behaviour for the concrete cover:
Moreover, while I was analyzing my results in the concrete stress-strain diagrams and saw the following:
It looked like that everything was good, but the last stretch was constant after of surpassing the maximum strain (-0.0038 when it should finish) until -0.0066 aproximately. I looked it weird beacuse I did not include the constant stretch and supposetely the concrete breaks in that strain (-0.0038) as you can see in the first picture.
I could think that probably was the target strain due to the target displacement in the model, because if I increase it more than the maximum strain, the rest stretch is constant as the second picture. Hence, my question is more about why the program show me that stretch or what behaviour the program identifies there. I would really appreciate if you can help me.
Thanks in advance
As I mentioned before, I was working in a model with distribuited plasticity using fibers. In the input data, I defined the
following behaviour for the concrete cover:
- concreto 1.PNG (31.56 KiB) Viewed 2317 times
- fibras de concreto 1.PNG (7.4 KiB) Viewed 2317 times
I could think that probably was the target strain due to the target displacement in the model, because if I increase it more than the maximum strain, the rest stretch is constant as the second picture. Hence, my question is more about why the program show me that stretch or what behaviour the program identifies there. I would really appreciate if you can help me.
Thanks in advance