Learning Forum

[alikuryan]

Hi all,

I am running a windshield impactor simulation in LS-DYNA, and I would like to obtain the internal energy output for a specific set of shell elements.

I tried using ELOUT and DATABASE_HISTORY_SHELL, but so far I have not been able to find the internal energy output for the shell element set.

Is there a way to directly output the internal energy of a selected set of shell elements in LS-DYNA?

If this output is not available directly, what would be the recommended way to extract or calculate this data? For example, are there any post-processing scripts, LS-PrePost options, or other methods that could be used?

Thank you.

[Dennis Chen]

Hello, unless I am missing something, internal energy should be part of the database_matsum output.   Have you tried that and included in your input file?  If you have, try looking at the "matsum" output.   

[alikuryan]

Dear Mr. Chen,

Thank you for your reply. Yes, I have also tried MATSUM, but it only provides the energy output for the entire part. What I need is the energy output for a specific set of shell elements, not for the whole part.

Do you know if there is a way to obtain this energy output for a selected shell element set?

 

Best regards,

Ali