a question about the fix indent command

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1 
Dear community,

   I have a question about the  fix indent command.  How to find the value of K ,the force constant for indenter surface? 

The value of K can't be too big nor too small. So, how to  define the value? Thanks!



Best regards,

Lingli,Zheng
2

That’s a Q for your model, not for LAMMPS.

Steve