General Mechanical

General Mechanical

Plotting Stress Ratio (R-Ratio) between 2 timesteps

    • Theo Camilleri


      I have a model where Timestep 1 is assembly and Timestep 2 is the operating condition. I'd like to create a contour plot of the stress ratio between the 2 timesteps, eg: Max Principal @ LS1 / Max Principal @ LS2. My first thought was to create a User Defined Result but I can't figure out how to evaluate the same result (max principal stress) at 2 different timesteps.

      Is there any way to do this using the User Defined Result feature in Mechanical or will I have to create an APDL macro?


    • Aniket
      Ansys Employee

      Insert a result for time at , add an identifier with a unique name to it, lets say, LS1

      Similarly, add another result with the identifier LS2 for the second load step.

      then add a user-defined result with expression LS2/LS1:


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