The discussion revolves around calculating the residual stress on a beam after it has undergone bending, specifically focusing on analytical approaches to model the stress and strain in the beam due to elasto-plastic behavior and springback effects. Participants explore various mathematical formulations and methods to derive the residual stress profile following unloading.
Participants express a mix of viewpoints, with some advocating for analytical methods while others suggest FEA as a more practical approach. There is no consensus on the best method to calculate residual stress, and disagreements arise regarding the interpretation of stress-strain curves and material behavior.
Participants acknowledge the limitations of their approaches, including the complexity of the beam's geometry and the potential for errors in mathematical formulations derived from online resources. The discussion highlights the need for careful consideration of assumptions in modeling material behavior.
What are the dimensions and material properties of the pipe? Also, to which bending radius do you need?Pradip Kandel said:Thanks, I was confused because of the equations I was unfamiliar with and those functions for Sigma(Stress). Do you have any other worked-out examples pdf that I could follow? Can you suggest any other references please? That would be such a huge help.