Learning Forum

[mehtay4]

I am simulating one part with a top and bottom die. I want to extract the volume reduction and density change after pressing. For Volume change, I usually go to the Element tool->measure->Volume. I will plot the volume change to get a density plot.

I know that LS Prepost won’t output Density by default. Is there any way to Fringe the density in LS PrePost directly or indirectly? For my application, I would like to get a contour plot for the density gradient and the density change. Any user-defined procedure or something?

Let me know if you have any suggestions or recommendations for this.

[ErKo]

 

 

 

Hi

See (HYDRO)

 

 

 

*DATABASE_EXTENT_BINARY
      ... (other options)
      hydro=2

 

 

 

in the LS Keyword manual I,

Also this:
How to output the internal energy density of solid elements? | Ansys Knowledge

Never used this though also
Not all material models have density output (some few have like mat181 and mat271)

Perhaps wait for members that have done this if possible to chime in (e.g., D. Chen).

Hope this helps

Erik

 

 

 

[mehtay4]

Hi Erik,

Thank you for the suggestion. I think HYDRO=2 might be useful for my application. I ran one simulation with HYDRO=2, but I am having difficulty in finding which History variable will give density output. I checked all history variables, but none seem like a density number.

I have used MAT15 Johnson Cook with the EOS Tabulated compacted material card.

Thank you,

Yash.