Where can I get Drucker-Prager Material constants for Sandstone and Limestone and EOS Compaction values?

31 October 2022 0 5K Report

I am trying to simulate rock drilling using PDC bit in Altair. I am looking for Drucker-Prager material model values/constants. There are 4 different drucker-prager material models available for rock materials in Altair-Radioss (attached). Any guidance which material model to choose and how to find values for the same is much appreciated. Thank You.

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