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Drucker Prager Cap, Relative Density Distribution

Drucker Prager Cap, Relative Density Distribution

Drucker Prager Cap, Relative Density Distribution

(OP)
One final question hopefully.  I have selected Relative density for an output option, but when the cap model finishes running and I choose to plot relative density contours, nothing appears.  The values are all zero.  The stress distribution works and makes sense.  Am I missing something to plot these relative density contours?

Thanks,

Chris

RE: Drucker Prager Cap, Relative Density Distribution

I am not very knowledgeable of Drucker Prager Cap, but
after searching the documentation I think RD makes sense only in context of porous metal plasticity.
Is the density a state variable in Drucker Prager Cap ??

RE: Drucker Prager Cap, Relative Density Distribution

If your density is field dependent you can use the same approach I mentioned before for E and Poisson's ratio.

RE: Drucker Prager Cap, Relative Density Distribution

(OP)
The density is dependent on the compaction pressure or position...looking around it seems as though I need to calculate this using a user subroutine.  however, i have no idea how to do this as i was introduced to abaqus less than a week ago.  thanks for all the help xerf,

chris

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