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How to Create a Nonlinear Stress-Strain Curve for Concrete on Engineering Data

- March 24, 2024 at 4:27 pm
  
  Adeleine Cabrera
  Subscriber
  
  Hi. I'm currently using ANSYS Student and, I want to study the effect of fire on structure. I am using Transient Structural Analysis to get the structure's response but, it stopped from analyzing because it gets a lot of warnings regarding the points on the stress-strain curve of concrete not having the same slope. I used Multilinear Kinematic Hardening to define it so, I get why it had those warnings.
  
  But, still, I want to continue with the analysis.
  
  How would I input a stress-strain curve of concrete with different slopes? What is the method that will allow me to input a decreasing stress (after the f'c) because all methods seem to not accept a negative slope?
  
  Thank you.
- March 26, 2024 at 1:01 pm
  
  Ashish Khemka
  Forum Moderator
  
  Hi,
  Please search for a video titled ' ANSYS Tutorial: Nonlinear analysis of Reinforced Concrete Beam and compare with test results' on YouTube and see if it helps.
  Regards,
  Ashish Khemka

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