How to swich time and mass units in hypermesh crash FE model for LS-Dyna

Jaume_B
Jaume_B Altair Community Member
edited February 2021 in Community Q&A

Hello all,

I've got a model in the standard units system for automotive (t mm s) but I have to work in "kg mm ms". I have carried out a units transformation of time and mass with the LS-Dyna comand "*include transform" but derived magnitudes such as stresses in material curves, velocities, densities… have not been successfully scaled to the new units.

Does anyone know how to carry out the units scaling in HM in a fast and automatic way?

Thank you very much!

Regards

Jaume

Tagged:

Answers

  • Lacie Feller_21296
    Lacie Feller_21296
    Altair Employee
    edited February 2021

    Hi Jaume, 

    Because hypermesh is unitless, there aren't any instant, built-in ways to convert between unit systems right now. 

    You can however quickly scale X and Y curve values for many curves at once.

    You can also use matrix browser to apply scale factors to any entity in your material cards. This can be done on a single material card or for many material cards at once. 

    Regards,

    Lacie

Categories