Dear colleagues,
I'm currently modelling a simple 4-point bending test of a concrete beam in Abaqus. However, the load-displacement curve was ascending (without final point), which didn't match the experimental data. I used embedment for reinforcements and tied the supports to the beam. The load is applied to the reference points coupled to the steel blocks tied to the beam. Do you have any suggestions to solve this problem?
Hi, Gu
how do you model concrete material? Did you add the Concrete Damage Plasticity and Failure model in the material definition section?
You can see the below link regarding concrete material definition.
https://invidious.fdn.fr/watch?v=wy84XGamn3g
Hi Gu,
If your material model of the RC beam doesn't account for failure mechanisms like fracture or yielding, the load might keep increasing indefinitely. You can check if your material model includes the appropriate failure criteria.
https://structville.com/2020/10/design-of-reinforced-concrete-beams.html
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