Hello guys,
I'm working with fiber concrete in the Abaqus CDP. I have previously modeled the EN 14651 test (3-point bending) and now I was testing my "real" beams. As you can see in the photo (figure 5), she has longitudinal reinforcement and stirrups. In a small test area, there are no stirrups (I'm working with shear). However, no matter how the material input stresses change, the force-displacement graphs are giving with increasing force in the post-peak region (figura 1 e 2).
The supports were placed in a region of the beam (without drawing the supports themselves) and the displacement applied in an RP with "coupling". Reinforcement is also in "embedded region". I tested it with random material from a YouTube video and the strength continues to grow. Is there a problem with my model? The peak force is also much higher than the experimental results. The CDP data can be seen in figures 3 and 4.
Hi Leticia Col Debella,
First of all, you cannot enter random material from a YouTube video and expect to get similar results to the experimental ones. The data you enter must match the ones in the experimental test.
Second, you need to check the data you use is True or engineering and must match the experimental data. If the stress data is True, the diagram you obtained might be correct.
The last thing I recommend is checking the input data units and rechecking your model; you might have done something wrong. I suggest referring to the link below as well. It might help you a lot.
https://caeassistant.com/product/abaqus-for-beginners-structural-engineers-in-the-field-of-civil-engineering/
Best wishes.
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