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Combined Vector Load vs. Multiple Single Axis Loads for Static Structural

    • Ben Dietrich
      Subscriber

      Hello,

      I am currently trying to get the stress and reaction forces for a part under loading conditions with simultaneous XYZ loading. When doing this I ran it both using a single remote force containing all three loads as well as three separate remote forces each containing a single direction all at the same timestep. The results I am getting for these two setups are markedly different even though logically they should be equivalent. Could anyone walk me through why these setups return such different results, as well as which one should be more accurate.

      Here are the load setups and the results they returned.

       

      Any insight into this issue would be incredibly appreciated, thank you.

    • Ashish Khemka
      Ansys Employee

       

      Hi Ben,

       

      Is there a difference in mesh for both model?

       

      Regards,

      Ashish Khemka

       

      • Ben Dietrich
        Subscriber

        Hello, 

        Thanks for the response, to answer your question, no there is no difference. The static structural model using multiple single axis loads was made and then duplicated and modified to have just the one vector. The only difference between them is the way the loads are applied.

         

        Thank you,

        Ben Dietrich

    • Ashish Khemka
      Ansys Employee

      Hi Ben,

       

      How the difference exists in way of loading? Is there a difference in the sequence of load application? Is the model non-linear where the load-application sequence can impact the behavior of the model?

       

      Regards,

      Ashish Khemka

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