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LS Dyna

LS Dyna

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Creating your own history variables

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    • October 24, 2024 at 6:38 pm
      patStokes
      Subscriber

      If I use a material model like MAT_15 and activate history variables with database_extent_binary I get access to additional variables like temperature change and the damage parameter. Is it possible to output a history variable not output by the material model? For example, is there a card where I could write a function to calculate shear modulus in each element and output this to a history variable for visualization in PrePost?

       

    • October 25, 2024 at 1:38 pm
      Ram Gopisetti
      Ansys Employee

      Hi stokess1998, 

      Yes, you can output the history variables based on an expression using *DEFINE_MATERIAL_HISTORIES. 

      Please check the LS-DYNA MANUAL VOL 1 under the *DEFINE_MATERIAL_HISTORIES example 4 for user-defined expressions for more information. 

      Cheers, Ram 

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