Reply To: Different Stress-Strain Diagram of RC Beam

[Rommel Jr. Landicho]

Hi! Thanks for your help. I have tried adding the command. Although it changes the load deflection curve, there are still some drops. I tried varying the parameters and some variations remove the sudden drop, I am still trying to figure it out. However, I would like to ask another question regarding beam failure.

 

My model has fairly accurate results as compared with my reference load-deflection curve. However, I do not know how to determine when the beam will fail. In my reference study, the beam is supposed to crush due to flexure at a deflection of ~35 mm but my model continues to deflect at 50 mm (maybe even more if I increase my displacement control). How will I know if my model has failed due to flexure? What result will ANSYS give if my beam has crushed? Also, are there plots I can make to see its cracking or at least potential areas where cracking can occur? 

Thanks!