Solution seems to be different from the experimental result

Ryozz
Ryozz Member Posts: 3
First Comment

Hello, I am doing an analysis on a cold formed steel beam-to-column bolted connection with gusset plate. In this analysis, I need to verify the result granted by ANSYS with the result of the experimental that has been done before. I am doing the analysis using Static Structural in ANSYS Workbench, using properties with young modulus and bilinear isotropic hardening data from the same experimental test. But, after I did the analysis, the result I get doesn't seem to be matching the experimental result. Max P-def of the experimental is 32kN with deformation of 85,83 mm. But I could only get the structure to get nonlinearity behavior over 30 kN, which after I test, I need almost 3 times of the actual load to get the same deformation result. What have I done wrong? Any suggestion? I am using Nonlinear Mechanical Mesh with 15 mm size. If any photo is needed, I would happily attach it in this forum, thankyou very much. Any tips would be appreciated🙏.

Answers

  • Ryozz
    Ryozz Member Posts: 3
    First Comment


    Mod
    El


    This is the model I've been analyzing, I also attached the data I used for bolt, cold formed steel, and hot rolled steel. The P-delta curve is the curve I need to be verifying my result with. With the real data I only managed to get 11 mm deformation, but with several adjustment, I could get closer to 85 mm, but I adjusted the young modulus and yield strength of the data far from the actual data, which cannot be used to give an credible result. Any suggestions please?

  • Ryozz
    Ryozz Member Posts: 3
    First Comment

  • Landon Mitchell Kanner
    Landon Mitchell Kanner Member, Employee Posts: 178
    First Answer First Comment 5 Likes First Anniversary

    Hi. This forum is for coding and scripting questions. For general user questions, please use: https://forum.ansys.com/